Originally posted by kitz
That is a 6 going to the regulator. The black pump operates at 12-14 psi. Yeah I know performance guys like to run an 8 but if you do a pressure drop calculation at worst case flow you will see that it is "point squat" psi. And besides the regulator manages pressure to the carb.

Do I sound defensive? I'm still talking myself into the 6

Regards, Kitz
if you put enough HP in front of that #6 hose, the reg won't have nothing to reg. can't but so much fuel get through that hose.