I'm running 120 pilots, 125 mains, 25psi 2.0 n/s 95g spring, 80 main on return. This is with 61x flame arrestors with 1 screen on a 62t 735 with a tnt ss chamber. Dual mikuni carbs not 760. Just for reference and comparison sake.. I have a 148 5mm setback mag pump as well.