What killed horsepower in the 1970s and 1980s? While the common consensus is 1972, the truth is that the real date depends on ...

We recently did a comparison dyno with the Performance Designs 102 LS3 intake vs the Stock LS3 Intake. The engine is a 416 LS3 based motor, 11:1, Tr... I'm late to the party and new to the LS stuff so ...