I have a few fuel questions....what is the stock injector size on a usdm ITR...would 440cc injectors a 5:1FMU and 255lph fuel pump be enough to run 8psi with my timing retarded...This is my daily driver and I want to do it right so it's reliable...should I just run 6psi....what kind of performance should I expect...

 

You have overkilled your fuel system. You have too much fuel with that setup.
Try asking rboosted717 on this board.

 

I didn't do it yet I am just gettin ideas on what set up to run