Looking to get rid of my aerospace vacum pump.it would only pull 8 at wide open throttle. Would a moroso enhanced 3 vane be okay or is the 4 vane better?
will it only pull vacum at full rpms?when i start it ,it stays at 0 when i rev it up a little it moves and bounces a little.is it better to take the line off the valve cover when warming up the motor?