The right side manifold will work with the 40342 but I'll have to swap the left side. The G30 left side manifold for the 5.7 should work. Never could figure out why the G20 and G30 had different left side manifolds unless they had different smog requirements(?). I'll get around to finding out if that swap will work one day.

The 454 injectors are just for a little more fuel as needed by the ecm.

Last edited by CatFish; September 21st 2021 12:40 pm.