righto then

um i have a 14psi pump which im still using (holley black) it seemed as thought he reg was not increasing pressure (second hand reg), at idle it was always around 7psi outlet, unless i screwed the screw in all the way at which point it jumped to 16psi, so i pressume it is stuffed?

the pressure gauge was in the engine bay so i wasnt sure it was ramping up pressure with boost, it seems not as it runs better with the new system which just uses a hobs pressure switch to give full pressure when boost comes on at all