[RocktimusPryme]

So again, direct experience with this.

Initially with my 462 a Q jet and a Robb MC 600 pump, I couldnt get down the track at all. Would fall on its face at like 100-300 feet. This is with 1/2" lines and a 1/2" pickup.

Upgraded to Robbs bigger pump, a regulator and vent line. That worked until you didnt have the tank mostly full. If you were below like 2/3rds it would run away from the pickup and fall on its face.

Got tired of the nonsense, I found a Tanks Inc LS swap setup for sale used locally and installed that. No more problems. Was still able to use Robbs regulator. Really nice piece. Highly recommend that. reasonably priced too.

Then I installed a Holley Terminator and now I have new problems. Because Hot Rods.

I will say with yours you have 2 needle and seats where I only had one. That MIGHT mask some issues and let you get away with it. If you want to find fuel system deficiencies install a QuadraJet.