pertronix issues

toolman, yup my ignition was way out. about 25 degrees advanced actually. so now i'm trying to return to zero and the best i can get is about 15 degrees advance based on the existing dot. any thoughts on getting this thing to zero? is this where folks will pull the distributor and rotate it a notch?
You could. Stick a screwdriver in the slot in the distance. Drive gear and "unscrew it" to move it a notch. You could move the plug wires on the cap also.