Tech

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Mailbag: Tracking Down the Source of Engine Misfire

Q: I have a 402 big block motor in my Chevy truck. It runs great from 1,800-2,000 rpm, on up. It has a Crane RV cam, Edelbrock Performer intake, and Performer heads. The rest is stock Chevy and pretty new (10,000 miles). At idle, it has a bad miss on cylinders 5 and 7 (we put the

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Valve Decoder: What are Your Engine Valves Trying to Tell You?

In a previous post, we showed you how to read your spark plugs. Now we’re going explain how to read your engine valves and valve-related components and translate what they’re telling you. The appearance of your intake and exhaust valves can hint at the current operating condition of your engine and foretell potential performance issues. Here’s what

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Video: An In-Depth Look at the Summit Racing TH350 Transmission

In today’s video, Mike from Summit Racing highlights the features of Summit Racing-brand TH350 transmissions, which provide a low-cost alternative to new transmissions with more reliability than typical rebuilt trannys. These Summit Racing transmissions are available for both Chevy and Buick, Oldsmobile, Pontiac applications. They feature all new internals, including new clutches, Kevlar® bands, bushings,

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Mailbag: Choosing the Right Carburetor for Supercharged Applications

  Q: I plan on installing a supercharger in the near future and I’m not sure what carburetor to use. Do I need to upgrade from my current carburetor to a larger carb to get the most from the blower? Are there any special tuning measures I need to take? A:  Much depends on the intended use of your vehicle. If your blown

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Balancing Act: A Guide to Harmonic Dampers and Balancers

There’s a lot of confusion about harmonic balancers. Heck, we can’t even agree on the proper name. Is it a balancer or a damper (we tend to lump them all together)? And furthermore, what does it even do? In this post, we’ve enlisted the help of Summit Racing, Fluidampr, and ATI Performance to provide a

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Live Wire: How to Choose Spark Plug Wires for Your Vehicle

[portfolio_slideshow id=46792] Spark plug wires can’t add horsepower (despite what some may claim), but they can adversely affect your vehicle’s performance. That’s why it’s important to select a good quality set of spark plug ignition wires to deliver juice to your spark plugs. Even though spark plug wires are simple parts (there are absolutely no

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