I just installed some new FMS 42lb injectors and a BBK pressure regulator. The car cranks fine and seems to idle fine but when I turn the car off the fuel pressure bleeds to 0 within a few seconds. With my 24's and a Crane regulator it would hold around 30psi for hours. I read in an old post where this was common with BBK and Aeromotive regulators but just wanted to be sure. More than likely I will switch back to the Crane regulator but if this is normal it would be nice not to have to troubleshoot any further. I definitely don't want anything to be wrong with the injectors. I doubt I could return them since I bought them over a year ago and just now getting around to installing them.