I currently run a V8 (auto) with a 3.9 engine, SD1 unleaded heads and standard HIF carbs with an electric fuel pump (front mounted - puller).
During sustained 70 mph + or hard acceleration, the engine suffers fuel starvation and I need to back off or throw it into neutral. I have adjusted the carb float level but note there is a considerable amount of fuel being returned back to the tank via the return pipe. the pump supplies enough fuel for this engine.Can you suggest a means of restricting the return flow at the carbs or should I use a 'pusher pump' mounted at the tank.
Anty suggestions for this size of engine - thanks
During sustained 70 mph + or hard acceleration, the engine suffers fuel starvation and I need to back off or throw it into neutral. I have adjusted the carb float level but note there is a considerable amount of fuel being returned back to the tank via the return pipe. the pump supplies enough fuel for this engine.Can you suggest a means of restricting the return flow at the carbs or should I use a 'pusher pump' mounted at the tank.
Anty suggestions for this size of engine - thanks