What size injectors do you think Ii whould need for a 383 with about 400 hp at the crank (on the motor ). It has a 150 hp dry shot of n20 , trick flow heads , super ram ,hooker long tubes , 4" mufflex exhust . I am chaging the cam to the lpe219 cam with 1.6 rr's . The car has 24 lb injectors in it now . I am sure they are near there limit . I was told maybe 32 lb . Thanks for the help .

 

i was going to say around 30lb ones, so 32 isnt a bad guess either.

 

Whatever size you go with, just make sure you dont go too high because then it will throw it off completely.