Originally Posted by Drewpw4ng
ok so let me get this straight.. sorry if i sound like a retard but i really dont know how this works. The threded stud on top is set up for a fuel press line/gauge?( does it be topped off with either a gauge or line or can it remain open) the vacuum line bove the allen head is where the stock vacuum line off the intake manifold goes? and u just adjust it from the allen? could i move the gauge to the regulator for easier access to it? thanks again ...
oh why would my stock fuel press be at 30 idle and not 39?
No the threaded allen head on top is for adjusting the pressure. There should be a nipple on the side for the vacuum line to fit on. Depending on what regulator you have, there may not be a provision for a pressure gauge on it. What regulator is it?
The gauge reading will change after you hook the vacuum back up. Do your adjusting without the vacuum attached.