
Pro engine tips on assembling and tuning everything from street engines to full-race motors.

Pro engine tips on assembling and tuning everything from street engines to full-race motors.

We upgrade our 5.3 LS with forged parts, cam, EFI then dyno NA and boosted on 93 octane.

We dyno and rebuild a 40-year-old 318 LA junkyard Mopar into a street monster.

Our 318 Mopar makes great dyno power. But things go sideways, and we hope we caught it in time.