Way back in 2015, we performed the mother of all LS intake tests by running 20 different intakes designed for cathedral-port heads . That test included every cathedral-port intake we could get our ...

Air Power: Holley’s iNTECH cold-air intake gives a 5 percent boost in power to LS3- and LS7-powered C6 Corvettes Feeding an engine cooler, denser air adds power—and C6 Corvettes are no exception.

A few months ago, we hatched a plan to test every intake manifold for the LS3 engine that we could get our hands on. Given the popularity of the rectangular-port LS3 configuration, it was only natural ...