Motor Trend

Edelbrock RPM Air Gap LT1 Intake Manifold Testing - Top End

For years LT1 enthusiasts have been running well into the nines with factory LT1 and LT4 intake manifolds. With some porting the factory castings have proven capable competitors, even on big-cube and ...
Motor Trend

Edelbrock LT1 Cylinder Head, Cam And Intake Manifold Test - Top End

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 ...