Tech

I have a ’66 Chevy II with a 355 cubic inch small-block and a Muncie four-speed. Over the years, I’ve made some small suspension modifications with Global West De-A-Lum bushings. On the freeway, the car can get into a violent front-wheel shake where the steering wheel wobbles really badly in my hands. It gets so

You’ve got questions. We’ve got answers. We work with the Summit Racing tech department to tackle your automotive-related conundrums. This week, we’re troubleshooting timing issues on a 400 c.i.d. engine swapped into a 1980 Firebird. Q: I have a 1980 Pontiac Firebird with a 400-cubic-inch engine out of a 1978 Trans Am. The engine was built

I’m building an in-tank fuel pump for a fuel injection conversion in a ’69 Nova with a small-block. I have no experience running lines for relatively high pressure injection stuff. What’s the most painless and economical fuel supply line to build? Is the braided line (PTFE?) with -6 AN fittings the way to go? I

If you’re into cars, then there’s a good chance that at some point you have wanted a muscle car. Unfortunately, the days of picking up a popular model on the cheap and driving away with it are long gone. Still, the lure of rolling down the road in muscle-car coolness is a powerful motivator. What

Think because your engine is fuel injected you don’t need to worry about heat causing you problems and stealing horsepower? Think again. Fuel injectors and the rails that hold them are just as susceptible to heat issues as the carburetors they replaced. Located on top of the engine, fuel rails see a lot of heat

You’ve got questions. We’ve got answers. We work with the Summit Racing tech department to tackle your automotive-related conundrums. This week, we’re talking about swapping a 350 crate engine into an ’85 IROC-Z Camaro currently powered by a 305 TPI engine. Q: I have a 1985 Camaro IROC-Z with a 305 Tuned Port Injection (TPI) engine,

Adding big power to your car regularly comes with consequences. Hardware that normally doesn’t flinch is suddenly hard pressed to keep up with the demand. Add big, sticky tires and before you know it—unanticipated carnage. Rear axles are regularly taxed to the max under such circumstances. If your car has a narrowed rear end or

Ford’s famous Alphabet Cams (a.k.a. Letter Cams) have been around for decades and are often the go-to choice for Mustang owners looking for more performance from their 5.0L engine. Ford Performance designed these cams for the 1985-and-up 5.0L/302 roller cam engines with 1.6 ratio rockers. On engines running electronic fuel injection (EFI), these camshafts are only

You’ve got questions. We’ve got answers. We work with the Summit Racing tech department to tackle your automotive-related conundrums. This week, we’re talking about aluminum vs. steel roller rockers and rocker ratio in daily-driven, high-mileage fleet vehicles. Q: I have some questions concerning the use of aluminum roller rockers on a street engine with a stock-type

Gasoline or E85 ethanol-blended fuel? David Freiburger and Steve Dulcich at Engine Masters wanted to find out which makes more power and by how much. So they grabbed a 489-cubic-inch, 13.5:1 compression big block Chevy, teamed up with our partners at Summit Racing for a couple of key parts, and started playing. To ensure a level playing