I have a 72 nova with a 454 in it. Im running a dominator 750 and when its been warmed up it idles at about 2000 rpm and thats with the idle screw adjusted out with no pressure on the accelartor cable at all. When its cold and just starting to warm up it idles about 900 rpms. Im thinking my fuel pressure is too much and dumping fuel into the motor causing it to speed up the motor. Im thinking I need to run a return line to help reduce the pressure while using like a 3 port regulator. Anybody have any suggestions?