[fleetsidelarry]

After driving mine for a couple of years I had an alternator that started overcharging and cooked the HEI module. If it turns out to be the module, you might want to check your alternator voltage output. I too carry spare parts now for the distributor. Actually, since you can get a complete distributor from Skip White in Tennessee for under $50 bucks just carry a spare, thats what I used to do until I used the spare in another vehicle.