I have an 03 Cobra with whipple 3.4 with a returnless fuel system consisting of dual gt pumps in a fore hat. Dual fpdms and -8 line running all the way to fore fuel rails into 63lb injectors. I keep having tuning issues with the fuel system. The car keeps running lean at times mostly under normal conditions not under load. I believe it may be in the fuel pump voltage table and/or the PID values. Anyone have any experience tuning a similar setup or have any advice on what values to use in the tables? Any info or advice would be greatly appreciated.
