Having problems at WOT now has me leaning toward a fuel pump volume issue. Yes the Q-jet bowl is small, but with the stock 3/8" line, there should be sufficient fuel available to run the car to the factory red line. The fuel you hear going back to the tank I suppose could be leaking past the valves in the fuel pump. The valves could also be leaking during running, unable to maintain fuel in the bowl. The fuel pump won't cure the bowl fuel loss of course, but as said an empty bowl Q-jet should fill and start the engine in 2, 5 second crank intervals. My next move would be to verify fuel pump pressure and flow, or just replace it.
|