turbo questions

Most guys with 70mm or so turbos, basic strokers, h/c/i run 60's.

But like said without knowing motor combo, turbo size, and current fuel sys we can only guess.

The 60's can do well over 600rw np.

-Chris
 
The engine has r/r, cai, under drives, and that is about it its a 70,000 stock engine. I have alum gt-40s and a trick flow street heat intake that will be installed we i head stud the engine oh i also have a stage 1 trick flow cam. i want to run 10 psi, the turbo is a t3/t4 garrett, 38mm waste gate, and a 50mm blowoff so i hope this helps.
 
The engine has r/r, cai, under drives, and that is about it its a 70,000 stock engine. I have alum gt-40s and a trick flow street heat intake that will be installed we i head stud the engine oh i also have a stage 1 trick flow cam. i want to run 10 psi, the turbo is a t3/t4 garrett, 38mm waste gate, and a 50mm blowoff so i hope this helps.

42's would be perfect and you can get ford racing ones. Many guys make 550rwhp on 42's. Many with only a single 255lph pump too.
 
just fyi ford racing rates their injectors at a lower brake specific (38# vs 42#) so your 42's are actually closer to 45+ and allows for a small window aswell.

If you are on a stock block, you will run out of block before injector with the 42s most likely.