Engine & Exhaust

With more LS engines being swapped into early-model muscle cars that participate in bracket racing, autocross and other competitive events, the limitations of the stock oil pan become more evident. […]

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re helping to rebuild a 6,500 rpm Chevrolet small block 350. R.B. • Las […]

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re clearing up concerns about oil pressure. Q: I have a second-gen Firebird. I swapped […]

Learn how to tune electric and manual carburetor chokes to help you start your carbureted vehicle on a cold morning. You’ll also learn how to find the correct choke position […]

It’s no big secret that big horsepower means increased heat. But high performance engines, like other internal combustion powerplants, aren’t really all that efficient. Roughly one-half of the total heat […]

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re answering questions about timing for small block Chevy engines. W.H . • Temple, […]

In the automotive plumbing world, there a few different ways to measure thread size on fittings and hoses. The most popular thread measurements are AN and NPT. What’s the difference […]

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re taming an old race engine for street use. Q: I plan to install the […]

Holley four-barrel carburetors are probably the most common high performance fuel mixing devices on the planet. Given the sheer numbers of carburetors made since the 1950s, you know they work. […]

Learn how your carburetor’s power circuit affects your vehicle’s acceleration, as well as how the power valve works and how to find the perfect tune, by watching this 16-minute video. […]