Common Firing Orders

Learn the best electric fan for a radiator and type to use for your build. Straight or curved blade, single or dual fan, and more!.

The pros and cons of a welded diff vs open diff, plus what to know before learning how to weld your differential.

Loud when you want it, quiet when you don't! Learn how exhaust cutouts work, manual vs electric models, and which is best for your build.

Learn how line locks can deliver the perfect burnout, along with tips on proper installation and how to use them.

Are LS injectors confusing you? Comparing stock vs aftermarket vs decapped, we help you choose the right LS Fuel Injector Size & Connector!

Gear up for your first drag race with this beginner’s guide to NHRA rules and required safety equipment.

Learn how HEI distributors work, how to wire and install them, and why they’re a top upgrade over points ignition systems. Includes tips on testing, vacuum advance, and DUI distributor benefits.

From glasspack, turbo, and chambered mufflers, to resonators, and more, which muffler is best for you? See our guide to learn more.

Easily calculate the best axle ratio or tire size for your build. Use our axle ratio calculator to match RPM, gear ratio, and tire diameter for optimal performance.

Why are fuel filters offered in different micron ratings, and which one is right for your build? Learn why EFI and carbs take different filters.