I have the current modifications: Ported intake with slp runners, ford svo 24 lb injectors, AFPR set at 43.5psi, AFR 190's heads, TES headers, flowmaster cat back system, and a paxton sn2000. I am currnetly not running my supercharger because i am breaking in the motor. I have been looking at burning my own chip, but my question is .....Are the 24lb injectors too big? my tail pipes are alway showing black as the plugs too? I set my fuel psi to stock and it seems to make no difference? I wonder if anyone else has this problem? I had to replace two cat's as a result of running too rich. I set my FMU on the supercharger from 8\1 to 6\1 ... but i am not running it now.?