[Craig Hendrickson]

Originally Posted by Tom Vaught

Based on the targets Craig posted, what is wrong with a "Boost Referenced" Mechanical Fuel Pump? (Chevy "6 valve" pump with a Pontiac Arm like Ken Crocie came up with years ago.)

If you were trying to make more Horsepower then a Aeromotive A-1000 Electric Pump and a Aeromotive 13202 "Boost Referenced" Regulator would be a one time buy and give you lots of fuel reserve.

Tom Vaught

H-O finally gave up on the boost referenced mechanical pump (Carter HD/HV) even back in the day. The diaphram stretches at even 6psi boost, so the fuel outlet pressure does not follow the boost reference. In addition, the diaphram is prone to cracking, which means that when that happens gas goes up the boost reference line! IMO, the ONLY proper solution is a 60gph+ electric pump at the back of the car with AT LEAST 20psi of static fuel pressure (30+ would be even better.) Of course you need a boost referenced fuel pressure regulator and a big enough return line so that the regulator can hold the pressure at the carb inlet at 6psi relative.

The Aeromotive setup (or equivalent) is definitely a way to go. You could probably get by with something smaller, more along the lines of the Holley 12-920 inline (67GPH@45psi).


Craig