In our last installment, we visited RaceKrafters Automotive Machine in Lancaster, PA to test the Edelbrock RPM Air-Gap LT1 Intake Manifold on a nearly stock 355cid LT1. Using a much smaller plenum ...
We recently spent a couple of days dyno-testing several different rocker-arm ratios on our 470-inch Mopar big-block. The good news was the engine made 700 hp on pump gas, but we were disappointed when ...