Smith-02

start with as low boost as possible, work your way up. that way, youll see it ------- up

79fairmont

Replace the floats with nitrophyl versions. Do not block off the powervalve. Get a boost referenced one instead. ---- a carb enclosure use a bonnet instead. Extend the vent tubes so you don't get fuel pull over. The mallory 4309 fuel pressure regulator has a reference port and works well under boost. You can modify a mechanical pump and it will work but not well. Get a decent electrical pump and call it done. Holley carbs like 6-7 base fuel pressure. Lock the weights in the distributor the vaccuum advance is just that. It cannot retard timing. Lock the weights and set total timing that way.

RotaryGeek

im not exactly sure but i think he might already have an electric pump. been a while since i have even touched this car so i dont really remember.

bigdaddyvtec

I agree. This Man speaks the truth... I ran 6 psi with a Holley "Blue pump" and regulator... But agree that a boost reference one is neccessaryas well... I used to run a Holley 830 anuall discharge with the vent tubes extended (just a couple pieces of hose zip tied together at the top-LOL) on my 650 whp 340 mopar mototr in the late 80s when i was a kid... LOL. Id pesonally invest in a MSD adjustable timing box setup, or at least one of some sort... But ya