We continue our exploration of carb tuning by looking at the vacuum secondaries on a Holley carb. Can you really get close to race car performance in your street car via the right tune?
DIY tech tips for wrenching, plus engine and tuning modifications for muscle cars, drag cars, and performance enhancement.
Randy Bolig sheds some light on why the accelerator pump on our carburetor is so important.
In their new video, Hagerty got their hands on a Holley 4346, which can be found on Camaros, Chevelles, and Novas.
Being quick on the high-speed road courses and ovals isn’t just a matter of bravery. Especially when running in close proximity with others, it requires restraint at times.
It’s always fascinating to see a heavy, softly-sprung stock car hustling around the few road courses on the NASCAR calendar.
Apexes are one of the first things a driver will begin to understand, and the theory behind them is simple enough. However, things get more complicated in real racing situations.
With powerful racing engines, a sensitive right foot is needed to keep the driven wheels from vaporizing every time the throttle is depressed.
For the ultimate performance, a clever driver will constantly change the brake balance to help get through the corners in one piece.
There are different moments when, during a race weekend, managing the tires correctly can reap huge rewards.
In the last issue we examined several different engine power curves and shared info on over-gearing. What all that means is less can often prove better than more.