I recently installed a TFS Street Upper/Lower, and while I was doing the swap put a BBK adj regulator on just to do it. I also cleaned all the injectors and replaced all the o-rings. I am having trouble adjusting it. It says to cap the vac line, and set the pressure. Prior to the swap you could turn the key on and the pressure would stay at a constant 38psi. Now it goes up then just bleeds off. I have a liquid gauge installed on the schrader valve. I don't smell any gas, it just leaks down. ????