‘65 GTO-389 starving for fuel?
I recently installed a new Edelbrock fuel pump on my 389. It’s rated at 6 psi and 110 ghp. The engine is .030 over, mild cam, headers, ram air III heads, Performer intake and Holley 600 cfm carb, turbo 400 trans. On a hard throttle take off in low gear the engine stalled after about 10 seconds like it was starved for fuel. I figured it needed more carb. The Holley is a square bore and has a adapter plate on the spread bore intake. So, I then installed a 750 Q-jet and the same damn thing happened again! I did not have this problem with the stock fuel pump and Holley carb but I felt like it would develop more power with a new fuel pump and QJet. The fuel pickup in the tank is also new. Do I have a bad Edelbrock fuel pump or is there some other cause for this starvation problem?
Also, what CFM carb is recommended for this set up? According to some CFM calculators I’ve a 600 cfm should be fine. Any advice is greatly appreciated. Thanks!
Last edited by Roqetman; 10-24-2017 at 11:31 AM.
Reason: Additional question.