Has anyone used Proform upgrades to Double Pumpers? I just picked up a billet baseplate pro-67155 and Primary metering block pro-67150c to go with the Main body pro-67100c! Can you really gain 25-50 hp from this over a Holley 650 DP as they claim? I will find out for sure within the next 2 weeks as I have dyno time booked at Lentech with a fresh 306 combo! Any info before hand would really help! Air bleeds info if any? Richard PS Shock towers have been cut 3" on each side thanks for all pics which really helped! Fuel cell going in Monday...ready for low 11s
Carbs on Dyno #'s coming soon! I will post my findings after the dyno, Holley 650DP vs the Proform setup! Richard
