[mr0077]

Shouldn't have a pressure regulator on a mechanical pump...But a good idea to put a Tee in the line and compare the test gage with the installed pressure gage. I hadn't heard the problem with the temps and the liquid-filled gages, but it makes sense. Wonder why they sell them for this use? If you really did have low pressure, the car would run poorly at/near WOT through the gears as the fuel level in the bowls dropped.