I agree it's probably the petronics module although it possibly could be the coil. I never liked that Petronics unit for that particular dist. I used to use the Crane unit that used the dist. cam lobe. They have gone out of business & Summit didn't have any left so I wound up with the Petronics. I'm glad to hear there is another one available that uses the dist. cam for a reluctor. I'm betting when you get that new unit on it will solve it.
