The only thing Richard Holdener has tested more than LS Intake manifolds is LS Camshafts, but he’s spent an insane amount of time not only testing all the intakes on the market, but also developmental pieces and even intake manifolds that he’s built himself. To say he’s a bit of an intake nerd would be an understatement. Luckily for us he shares all his info and that includes this shootout between intake manifolds on a stroker LS3 that measures 427 cubic inches. Check out the video below and see which intake reigns supreme.

Video Description:

HOW TO MAKE MORE LS3 POWER. WHAT IS THE BEST INTAKE FOR A HIGH-RPM, 427 STROKER? WHICH ONE WORKS BEST-HOLLEY HI RAM VS EDELBROCK PRO-FLOW XT! HOW MUCH POWER IS A HOLLEY HI RAM WORTH? HOW MUCH POWER IS AN EDELBROCK PRO-FLO XT WORTH? IS THE HI RAM BETTER THAN THE STOCK LS3 INTAKE? IS THE EDELBROCK PRO-FLO XT BETTER THAN THE STOCK LS3 INTAKE? CHECK OUT THIS VIDEO WHERE I COMPARED THE STOCK LS3 INTAKE TO THE HOLLEY HI RAM AND EDELBROCK PRO-FLO XT INTAKE? WHICH ONE MAKES MORE POWER? WHICH ONE MAKES MORE TORQUE? DOES THE 90-MM THROTTLE OPENING HURT THE EDELBROCK VS THE 105MM OPENING ON THE HOLLEY?