Which quad driver? There are two. I can dig into my FSM'* and tell you what two or 3 things are suspect depending on which QDM fault is there. Was your foot on the brake? That can set a false QDM on some scantools. Other possibilites are evap purge, Boost control solenoid, TCC lockup, and radiator fans. There'* a couple more, this is just off the top of my head.
MAP failed? Ummmmm........you don't have a MAP sensor. The only Series 1 L67'* that have one are those with the factory boost gauge. Like my 95 SLE/SC, you have no MAP. What scantool was it?
RPF? No clue.
5 degrees of KR is not good. You want 1-2 MAX, and that'* with a smaller pulley. Aren't you still running the 2.85 stocker?