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?
Installs, modifications, how-to guides and tech tips for drag race vehicles and engines including LS engine swaps and LS engine mods, small block info, carburetor adjustments, EFI, brakes, shocks, struts, chassis, frame, tires, wheels and all of the types of adjustments that can be made to a drag vehicle to either get it to the strip and increase performance once its there. This also includes guides to NHRA race classes and NHRA rules.
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.
When driving in the rain, it’s important to adjust the suspension and, if possible, the engine, to get a car that is more predictable and less edgy towards the limit.
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.