After building out my truck (heads. cam. exhuast, tune, the works) my tuner told me im at 100% duty cycle and that I needed bigger injectors to get that lower for more tuning potential. I have already done the MPFI upgrade before he tuned it. I have seen a lot about the marine intakes but I have also heard how expresive they are. I saw that TBI 350s have adjustable fuel pressure regs, is that true for vortec motors too? I just dont want to have to drop a bunch of money on making the marine intake work. It seems like a common issue people have and im not even sure if its that big of an issue. Thank yall!