Yeah. Tune it by ear. You'll never have it perfect until you pull the flywheel. The best thing to do is get it so it's running AND at operating temps, then loosen the IP bolts just enough to rotate the pump and leave one snug. Then, while the car is idling, rotate the pump backwards (i.e. advance the timing) until it JUST starts to smooth out and runs really nice. As it stands now, if it's not running right, 90% of the time, it's too retarded.
