Ignition & Electrical

Q: I’m building a Ford 302 engine, and I’m looking at camshafts. I’m curious—why did Ford change the firing order on the 5.0L (302) HO engine? A: This question gets […]

I have a question about the optimum distributor rotor tip and terminal gap. Modern replacement parts for our classics are all over the place, either in terms of length, cap […]

I have a Camaro with a 454. I went to fill it with gas on its first run for the spring and drove it perhaps 20 miles. After stopping briefly, […]

How do I tell the correct heat range spark plug for an engine? – Mark S. Jeff Smith: Simple questions sometimes require a bit longer answers. This is one of those […]

I did a LS2 swap in my ‘54 Belair. The engine came from an ‘05 GTO. It has a modest stereo system operating on a 10-amp fuse. It has a 16-inch […]

Today, big high quality electronic tachometers are a common sight at drag strips and in fast street cars. Modern electronics have turned tachometers into precise and reliable instruments (provided, of […]

I’m confused. I see all kinds of opinions about iridium and platinum spark plugs versus the normal copper plugs. Some say they’re good while others say not to use them […]

Electrical connections that come loose, break, and short-out can become a major headache—especially on a car that relies heavily upon electricity to function.  If the electrical connections aren’t right, they […]

We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re looking for causes for recurring starter failure. P.M. Carson City, NV Q: My 1968 El Camino has […]

My buddies and I got into a discussion the other day about why all the new car companies went with individual coils for each cylinder as opposed to sticking with […]