Sport Mod Carburetor Main Jets

Dirt modified racing delivers high-horsepower, adrenaline-fueled action, learn more about them and their racing classes

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

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

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Jason explains a solution to blocking the late evening sun while still maintaining full visibility. Watch this video to see the how the Outerwears EZ Sun Visor works.

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.