This summer Im planning to purchase a pi engine. And I was doing some research on it, and I noticed it had a different fuel system. It doesnt have return line on the fuel. and it uses some different voltage regulator on the pump. Since my fuel system wont hook up to this one is it possible to swap my fuel rails? Or should I just go with a pi swap. THe reason I didnt want to do a pi swap is because, I wanted a newer engine, didnt want the high compression, and plan to install cams and longtube headers. If I were to convert to the newer fuel system I would have to get all new lines, fuel tank, fuel pump and such.