So i put a new high flow Walbro fuel pump in, but now my AFR doesnt seem to be able to get the pressure below 80psi now. Just put a new bbk pressure regulator on and the screw is all the way out. Anyone have the same problem??

 

Well the best thing to do is start with the basic stuff like blowing out the fuel lines to make sure there is not a blockage in them causing a pressure rise. You can disconnect the fuel lines before they meet the tank and near the steering colomn under the hood. Best to have two people so one person can plug there finger over the other. i would spray carb cleaner in there as well. These cars are getting old so possibilities of build up in the lines is much greater. Even in the fuel rails there could be blockage. This may not slove the issue but helps narrow down the possibilties. Could just be a bad regulator.

 

Sounds like you may have pinched the return line.