AC Carburetor Power Valves

There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

Learn how to install a bypass and deadhead style fuel pressure regulator. We cover how these regulators work with a carburetor and advantages of each style.

We look at the basics of performance carburetion and what you need to properly supply your street or race car with enough fuel in this buyer's guide

Learn how to calculate your CFM with a formula to determine what the best carburetor size is for you. We also cover vacuum and mechanical secondaries.

The 4.8 LS engine is a salvage yard bargain vs the typical 5.3 or 6.0 LS and can still make great power for your LS swap needs.

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

In this Tech Tip, John confirms a customer question regarding the need for a proportioning valve on his ’55 F100 brake build.

Today we take a look at the differences between proportioning valves (both fixed and adjustable models) and the residual pressure valves we offer in this buyer's guide.

There is a lot to consider when choosing the proper spark plug for your engine's intended application and power level. Let us take some of the guesswork out with our spark plug buyer's guide.

Learn what a manual valve body can and cannot do for your automatic transmission and performance driving needs