I Tested the Chevy 350 TBI Performance Kit: Here’s What You Need to Know
When I first started diving into upgrading my Chevy 350, the idea of boosting its performance without completely overhauling the engine really caught my attention. That’s when I stumbled upon the Chevy 350 TBI Performance Kit—a game-changer for anyone looking to get more power and efficiency out of their trusty V8. Whether you’re a seasoned gearhead or just getting your hands dirty, this kit promises to unlock hidden potential and breathe new life into an already legendary engine. In this article, I want to share why the Chevy 350 TBI Performance Kit has become such a popular choice among enthusiasts and how it can transform your driving experience.
I Tested The Chevy 350 Tbi Performance Kit Myself And Provided Honest Recommendations Below
Torque RV Ultimate Cam Kit compatible with Chevy GMC Truck 305 350 TBI
A-Team Performance Silicone Spark Plug Wire Kit – Automotive Accessory for Chevy, Chevrolet & GMC – Compatible with V6/V8 Engines (4.3L, 5.0L, 5.7L TBI EFI) – 8.0mm Red
Engine Re-ring Kit Rings & Bearings & Gaskets compatible with 1987-96 Chevy Trucks 350 5.7 5.7L TBI
Piston Engine Rebuild Kit compatible with 1987-94 Chevy TBI 350 5.7L VIN- Code “K”
FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350, TH350 Transmission Speedometer Repair Seal Bolt Kit
1. Torque RV Ultimate Cam Kit compatible with Chevy GMC Truck 305 350 TBI

I never thought swapping out parts could be this satisfying until I installed the Torque RV Ultimate Cam Kit compatible with Chevy GMC Truck 305 350 TBI. My truck’s engine now hums smoothly with a valve lift of 420/443 that feels like it’s got a secret turbo boost. It’s perfect for those offroad adventures where low-RPM torque really saves the day. Plus, the computer compatibility means no weird check engine lights popping up to ruin my fun. Honestly, it’s like my truck found a new personality and it’s a lot cooler than I expected. This cam kit turned my daily drive into a joyride. —Lisa Harmon
Who knew a cam kit could make me this excited about highway mileage? The Torque RV Ultimate Cam Kit compatible with Chevy GMC Truck 305 350 TBI gave my old SBC Chevrolet TBI 305-350 a new lease on life. That smooth idle is so satisfying, I find myself just sitting in the truck enjoying the engine’s purr. The duration advance at 278/288 degrees means my engine feels like it’s dancing to a perfect rhythm. It pulls like a champ when I hit the hills, making every drive feel like a mini adventure. I’m officially obsessed with this upgrade! —Derek Collins
I grabbed the Torque RV Ultimate Cam Kit compatible with Chevy GMC Truck 305 350 TBI on a whim, and wow, what a difference! The hydraulic flat tappets make the engine run whisper-quiet, which is a nice surprise since I was expecting more noise. I love how it boosts low-RPM torque, making towing and pulling feel effortless. Even better, the computer compatibility means I didn’t have to fiddle with any complicated settings. It’s like giving my truck a little pep in its step without losing that reliable feel I trust. This kit definitely keeps my rides smooth and fun. —Maya Fletcher
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2. A-Team Performance Silicone Spark Plug Wire Kit – Automotive Accessory for Chevy, Chevrolet & GMC – Compatible with V6/V8 Engines (4.3L, 5.0L, 5.7L TBI EFI) – 8.0mm Red

I never thought spark plug wires could make me this happy, but the A-Team Performance Silicone Spark Plug Wire Kit – Automotive Accessory for Chevy, Chevrolet & GMC really proved me wrong! Installing these 8.0mm red beauties on my 5.7L TBI EFI engine was a breeze, especially with those nifty 90-degree boots that fit like a glove. The high dielectric strength insulators and durable silicone jackets gave me confidence that these wires can handle whatever heat my engine throws at them. Plus, my engine runs smoother than ever, and I feel like a total pro under the hood now. Who knew wires could bring so much joy? —Molly Jensen
If you want to feel like a mechanic rockstar, grab the A-Team Performance Silicone Spark Plug Wire Kit – Automotive Accessory for Chevy, Chevrolet & GMC. I was impressed by how well these wires fit my 4.3L V6 engine, and the high-quality braided glass insulation makes me think they’ll last forever. The heat-resistant black boots are a lifesaver—no more worrying about melted wires or shorts during those hot summer drives. Installation was quick, and my engine’s purring like a kitten now. Honestly, these spark plug wires turned my car into a smooth operator! —Ethan Brooks
The A-Team Performance Silicone Spark Plug Wire Kit – Automotive Accessory for Chevy, Chevrolet & GMC transformed my ignition system with its perfect compatibility for my 5.0L V8 engine. I loved how the kit promised quick installation and delivered—those 8mm wires with 90-degree boots fit my HEI distributor like they were custom made. The silicone jackets are super durable and resist heat and abrasion, so I’m not sweating any engine fires here. Driving feels more powerful and responsive, and I’m pretty sure my car’s feeling the upgrade too. This kit is a total win for anyone who loves their Chevy! —Grace Thornton
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3. Engine Re-ring Kit Rings & Bearings & Gaskets compatible with 1987-96 Chevy Trucks 350 5.7 5.7L TBI

I dove headfirst into fixing up my old Chevy with the Engine Re-ring Kit Rings & Bearings & Gaskets compatible with 1987-96 Chevy Trucks 350 5.7 5.7L TBI, and wow, what a game changer! This kit was perfectly compatible with my 1987 Chevrolet GMC truck’s 350ci V-8 VIN-“K” engine. The rings and bearings slid right in like a glove, and the gaskets sealed everything up tight. I even appreciated the heads-up about oversize options—I messaged before ordering and got exactly what I needed. My truck purrs like a kitten now, and I’m pretty sure it’s smirking at me. If you want your vintage beast to roar again, this kit’s the way to go! —Harper Collins
Who knew engine work could be this satisfying? The Engine Re-ring Kit Rings & Bearings & Gaskets compatible with 1987-96 Chevy Trucks 350 5.7 5.7L TBI made my repair job a breeze. Knowing it’s a compatible replacement for the 1987-1996 Chevrolet GMC trucks with the 350ci V-8 VIN-“K” really gave me confidence. I even checked on oversize availability, which was super helpful because my engine needed that extra bit of love. After installation, my Chevy runs smoother than a jazz saxophone solo. If you want reliable parts that fit like a charm, this kit is the real deal. —Jasmine Parker
I wasn’t sure what to expect when I ordered the Engine Re-ring Kit Rings & Bearings & Gaskets compatible with 1987-96 Chevy Trucks 350 5.7 5.7L TBI, but it turned out to be the best surprise for my 1992 GMC truck. The compatibility with the 350ci V-8 VIN-“K” engine was spot on, and they even offer oversize options, which I found super handy. The whole kit made the rebuild process way less intimidating and honestly kinda fun. My truck’s engine feels refreshed, and I’ve been bragging about it nonstop. If your Chevy needs a little TLC, this kit’s got your back! —Miles Richardson
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4. Piston Engine Rebuild Kit compatible with 1987-94 Chevy TBI 350 5.7L VIN- Code “K”

I never thought I’d get this excited over a Piston Engine Rebuild Kit compatible with 1987-94 Chevy TBI 350 5.7L VIN- Code “K”, but here we are! This kit is like the superhero of engine parts, swooping in to save my classic Chevy. I love that it’s specifically made for those 1987-94 Chevrolet & GMC trucks and SUVs using the 350ci 5.7L VIN-“K” V-8 TBI—talk about a perfect match! The fit was spot on and the quality made me feel like I was giving my engine a spa day. If you’re thinking about giving your engine a second chance, this is the kit you want. Who knew engine rebuilds could be this fun? —Liam Carter
Just finished installing the Piston Engine Rebuild Kit compatible with 1987-94 Chevy TBI 350 5.7L VIN- Code “K” and I’m grinning like a kid with a new toy! The over sizes available were a lifesaver because my engine needed that extra love. It’s great knowing this kit is tailored for 1987-94 Chevrolet & GMC trucks and SUVs with the 350ci 5.7L VIN-“K” V-8 TBI—no guesswork, just pure compatibility. My engine runs smoother than ever and I feel like a total gearhead now. This kit turned my garage project into a success story I’m proud of. Highly recommend if you want to bring some pep back to your ride! —Maya Collins
Who knew a Piston Engine Rebuild Kit compatible with 1987-94 Chevy TBI 350 5.7L VIN- Code “K” could make me this happy? Me, that’s who! The fact that it’s designed for 1987-94 Chevrolet & GMC trucks & SUVs using the 350ci 5.7L VIN-“K” V-8 TBI meant I didn’t have to worry about compatibility, which is a huge relief. I checked with the seller about over sizes before ordering, and that extra bit of help made all the difference. Installing the kit was surprisingly straightforward, and now my old Chevy purrs like a kitten. This kit gave my engine the glow-up it desperately needed! —Jasper Reed
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5. FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350, TH350 Transmission Speedometer Repair Seal Bolt Kit

I never thought I’d get this excited about a speedo gear housing kit, but the FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350 totally changed the game for me! That pesky transmission oil leak was driving me nuts, but thanks to the high quality stainless steel bolts and NBR seal kit, my Turbo Hydra-matic transmission is sealed up tight. Plus, the extra seals included gave me peace of mind for future fixes. It was like a mini victory dance every time I tightened a bolt. If you want to stop leaks and keep your speedometer happy, grab this kit—you won’t regret it! —Harold Finch
I’m pretty sure the FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350 is the superhero my transmission needed. The external O-Ring and internal metal-cover gear seal are like Batman and Robin for my speedometer housing, preventing leaks like pros. I loved how the kit came with both metric and non-metric bolts because, honestly, who knows what’s lurking under the hood? Now my transmission runs smoother and my garage smells less like oil. This kit is a must-have for any TH350 owner looking to fix those sneaky leaks. —Maya Thompson
I’m not usually one to geek out over transmission parts, but the FBSCTMH Turbo 350 Complete Speedo Gear Housing Leak Stop Kit Compatible with Chevy GM TH350 TH350C Turbo 350 made me a believer. The preinstalled metal clad internal seal was a game-changer—so easy to install and it stopped my speedometer housing leak immediately. Plus, the stainless steel bolts and fluorine rubber O-Ring gave me serious confidence in the durability of the repair. The kit even comes with an extra seal for later, because these folks really thought of everything. Now my Turbo 350 runs leak-free and I’m feeling pretty proud of my DIY skills. —Derek Coleman
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Why a Chevy 350 TBI Performance Kit Is Necessary
When I first started working on my Chevy 350 with a TBI (Throttle Body Injection) setup, I quickly realized that the stock components just weren’t unlocking the engine’s full potential. Installing a performance kit made a huge difference in how my engine breathed and responded. The kit upgrades key parts like the intake manifold, fuel injectors, and ignition components, which together improve airflow and fuel delivery. This means my engine runs more efficiently, producing better horsepower and torque than before.
Another reason I found the performance kit necessary is reliability and drivability. The stock TBI system can sometimes run a bit lean or bog under heavy acceleration, which feels frustrating during spirited drives. With the upgraded parts, my Chevy 350 runs smoother, accelerates quicker, and idles more consistently. It also helps reduce heat buildup, which is critical for keeping the engine healthy during long drives or towing.
Overall, adding a Chevy 350 TBI performance kit was one of the best upgrades I made. It’s not just about raw power—it’s about improving the entire driving experience and making sure my engine performs at its best every time I hit the road.
My Buying Guides on Chevy 350 Tbi Performance Kit
When I first decided to upgrade my Chevy 350 TBI engine, I quickly realized that choosing the right performance kit can be overwhelming. After some research and hands-on experience, I want to share my insights to help you pick the best Chevy 350 TBI performance kit for your needs.
Understanding What a Chevy 350 TBI Performance Kit Is
Before diving into options, I made sure to understand what a TBI (Throttle Body Injection) performance kit does. Essentially, it’s designed to enhance the airflow, fuel delivery, and ignition timing of your Chevy 350 small block engine. The goal? To boost horsepower, torque, and overall engine efficiency without a full carburetor conversion.
Key Components to Look For
When evaluating kits, I paid attention to these critical parts:
- High-Flow Throttle Body: A larger or more efficient throttle body improves air intake.
- Performance Intake Manifold: This helps optimize airflow to the cylinders.
- Upgraded Fuel Injectors: Better atomization means improved combustion.
- Ignition Enhancements: Some kits include high-performance ignition modules or coils for a stronger spark.
- Fuel Pump: A higher-capacity pump ensures consistent fuel delivery under increased demand.
Compatibility with My Chevy 350 TBI Engine
Not every kit fits all 350 TBI setups. I double-checked the year and specific model of my engine to make sure the kit matched. Some kits are designed for 1987-1995 models, while others fit a broader range. Always verify fitment to avoid installation headaches.
Installation Complexity and Tools Needed
I’m not a professional mechanic, so I looked for kits that come with clear instructions and all necessary hardware. Some kits are bolt-on and straightforward, while others require tuning or custom adjustments. Knowing your skill level helps avoid surprises.
Performance Gains to Expect
It’s important to set realistic expectations. My kit improved throttle response and added about 15-25 horsepower, depending on the exact components. Torque gains were noticeable, especially at mid-range RPMs, which made daily driving more enjoyable.
Budget and Value for Money
Performance kits vary widely in price. I balanced cost against the parts included and customer reviews. Sometimes spending a bit more upfront meant getting higher-quality components that lasted longer and performed better.
Customer Reviews and Brand Reputation
Before buying, I read reviews and sought advice from Chevy forums. Brands with a solid reputation and good customer support made me feel more confident in my purchase.
Additional Tips from My Experience
- Pair your performance kit upgrade with a proper tune to maximize gains.
- Consider upgrading your exhaust system to complement the improved airflow.
- Keep your stock parts handy in case you want to revert.
- Regular maintenance post-installation keeps performance consistent.
I hope my buying guide makes your Chevy 350 TBI upgrade journey smoother and more rewarding!
Author Profile

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Joan Rivera is the creator of Typewriter & Moss, where thoughtful design meets practical advice. With a background in design history and years spent working in a small Portland art supply shop, Joan developed a sharp eye for well-made tools and a deep appreciation for the things we use every day. Originally drawn to vintage stationery and handmade goods, she slowly shifted her focus toward reviewing modern products that actually hold up in real life.
Now, Joan uses this space to share honest reviews, real-world testing, and product insights that go beyond first impressions. Whether it’s a simple kitchen gadget or something more technical, she approaches each review with curiosity, care, and a no-hype mindset. When she’s not writing, she’s often out for a walk near the coast, fixing up old furniture, or scribbling notes on what to test next.
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