Return lines do wonders. If you don’t need the additional fuel flow the RobbMC provides, you may be fine using your current pump. Maybe start by adding a bypass regulator after the pump (output from pump to regulator, then out of the regulator one line to carb and one line to return). No need for a return port on the pump itself.
IIRC, Q-Jets aren’t particularly fuel pressure sensitive, so it may be perfectly fine with that set up. If it starts nosing over when you’re hard on the throttle, then you’ll probably want to upgrade to a RobbMC pump.
__________________
1976 Trans Am Buccaneer Red
468ci, 10.5:1 CR, 87 CC RPM CNC e-heads, HR 282/288, 230/236, 561/.573 lift, Johnson Lifters & HS 1.65 Rockers
|