I used an AC 40373 pump on my tripower engine. It works just fine. I initially tried one that was for a late 70's 400 and it overpowered the needle and seat on the carbs at idle and when you'd shut the engine off it would leak down. I ran a regulator for a while and cranked it down to 6 psi. It did better. However, I didn't want to run a regulator. The AC 40373 Pump took care of the problem. The carbs just won't tolerate much over 6 psi of pressure.
|