See All 26 Photos 21.Katech’s new 103mm throttle body complements the high-flow MSD intake manifold, offering the airflow capability required to feed the large-displacement LT1 at high rpm.

There’s more! The naturally aspirated combo was the perfect opportunity to test out MSD’s Atomic AirForce LT1 intake with a Katech 103mm billet throttle body. Surprisingly, the difference was ...

Katech took the factory LT1 and put in a 4-inch stroke with ... replaced the factory manifold and is fitted with a 103mm billet throttle body. The direct-port fuel injectors were modified to ...