Conversely, vacuum secondaries work extremely well ... Holley's legendary line of carburetors aren't the only fuel mixers receiving updates. "Those interested in Terminator EFI can expect some ...

when the smog equipment-laden used cars from the late-'70s and early '80s would basically never run right again if a vacuum line was pulled off the carb. You just didn't touch it. Fuel injection ...

There appears to be a surge of misinformation on the internet claiming that anyone who doesn’t hook their vacuum advance line to manifold vacuum is an incompetent tuner. Unfortunately, this can lead ...

Vacuum secondary Holleys are easy to identify because of the large diaphragm housing positioned on the passenger side of the carburetor that connects to the secondary throttle shaft. These ...

Don't get us wrong. There's absolutely nothing wrong with a carburetor. These largely mechanical devices have delivered precise amounts of air and fuel into engines from the very first internal ...