We’ve been slowly upgrading Chris Friend’s 1965 Mustang.

This time, we stepped up the 289 with AFR’s SBF Enforcer top-end kit.

The oxygen sensor is an incredibly crucial component in the overall engine management system.

Here's the low-down on how they work.

Our 1976 Chevy LUV pickup, Project McLuvin, gets a Whipple supercharged LS 427 that pumps out over 1,000 horsepower!

This beast has some of the best parts on the market in order to make crazy power with ease.

You can now get quality AFR LS3 cylinder heads at an affordable price.

AFR's LS3 Enforcer Rectangular Port cylinder heads can support serious horsepower.

Vortech Superchargers and Paxton Automotive are joining forces with the industry leading brands, creating a formidable knowledge base across nearly the entire performance /racing engine system.

For the cost-conscious crowd, AFR offers their Enforcer LS1 heads.

They feature quality parts and performance found in more expensive heads.

Heads and cam combinations developed together to offer high horsepower potential.

The AFR Mongoose Heads and cams produce a great LS3 head/cam package.