Originally Posted by qiksix
Yeh pretty sure it was Don i emailed. The idle bypass the poppet from the rear of barrel valve, yes it's at 10psi. You mention to keep the idle lean but doesn't that hurt throttle responce, i thought it had to be fairly rich for the transition from idle to flat chat.
Once you roll the throttle 15/20% it cut's off the idle bypass and goes to full fuel pressure and back to rich mode. So even if you're foot braking the car rather than a trans brake you off the lean setting for idle.
Suicidebomb, the -1/2 pump puts out about 4.7 GPM at 4,000 RPM's
Zip.