How much HP is the 5.3 injectors good for? I just installed a set of ported heads with 1.94 intake valves and i'm wondering if i'm going to need bigger injectors or mine will be able to support the air i'm moving now?

 

How high are you spinning the motor? How big is the cam?

 

Might be time for some stock 8.1 injectors @ 31#.

 

what rpms you takin it too?????? and what r you dc at now?

 

My cam is 212/218 & 521/528. I'm shifting at 6300.