well we just put it in, had it running, we didn't gap the plugs or put the HEI wires on, just pushed the old wires on the HEI posts. made shure the source we took was 12v constant w/ key on. it is a unfused block. well after toying with the timing a little and making a couple "power time" runs, we had it sitting in the driveway with the light on it, and it just quit, and we heard somthing in the distributor go pop. is there anything we can do to troubleshoot this distributor? a new pickup, modual, what should we do. Also, when we had the light on it, timing was all over the place, like it was jumping 5* or better, it would retard, then advance, and go all over. we may be reconverting back to points, good thing we just disconnected the resistor wire and the bypass, would be easy to put back. thanks in advance.