The idle surge is horrible now. I reset my TPS as close as I could get to .99 (it was 1.04) and I backed out the stop screw, opened up the ISC valve, and went into the tweecer and put in freaking 1000 rpms for idle. It doesn't actually idle there though, it still tries to idle at 800 or so, and it is surging real bad. It all started when I bumped up the fuel pressure and set the timing form 0* to 10*. As soon as I raised the pressure it started surging. Should I try lowering the fuel pressure back down? It was at 36 or so, now it's at 40 vacuum off. It keeps popping and bucking a lot on acceleration and part throttle cruising. I don't know if that means it's lean or rich or what. Any ideas?