What is a general safe effective compression ratio on E85? The internet results in varying opinions from 13:1 up to an extreme 20:1. Jeff Smith: This is an interesting question […]

I was at my local car show the other day and I talked with a guy who built an inline Chevy 6 for his street rod. I was interested in […]

I’m considering swapping a 6.0L truck LS engine into my ’69 Chevy pickup and I’m trying to decide which intake system to use. My engine has the stock plastic, truck […]

Old guy up in Canada scratching his head and wondering: A: Is the oxygen in ethanol as hard on aluminum parts as the information available on the web says it […]

I just bought my first car, a ’64 Chevelle with a 283 small-block and a Powerglide trans. The engine runs well, but I’m concerned that when I put the engine […]

I recently went with my buddy to chassis dyno test his LS-powered Nova and toward the end of the first test the car spit the driveshaft out and it went […]

Do you know of or are you a good source for questions about timing? I’m not talking about the basics. I think I have that figured out. A question I […]

I purchased a used hydraulic roller camshaft from a friend that was originally used in an LS1 engine. My buddy says it’s a mild cam that’s bigger than a stock […]

What exactly is vapor lock? My friends say I have a problem with vapor lock. Last summer, my small block 350 Camaro had problems in the heat of late summer […]

What type of spark plugs do I use on my ZZ3 motor? I know that there are a lot of different spark plugs but what type do I use in […]