I've tried just about everything listed here, and I still have a surging idle. But mine goes from like 700 up to 1300 RPM's. I'm also running very rich. My car was fine before I added the supercharger, 255lph fuel pump, and 30 lb injectors. Also went to a 76mm MAF. If I unplug my MAF, it won't surge anymore. I've cleaned the IAC and throttle body and still no luck. My brother thinks that putting in a Kirban FPR will fix my problem. Does that sound right? Between regulating fuel pressure and adjusting my timing, should that fix the problem, even though unplugging the MAF stops the surge?