[Jac Mac]

A quick check to eliminate the ignition... Hook your timing light up to the HT Coil to Distributor lead, tape the trigger/button to the on position and zip tie it in a position where you or passenger can observe when you run it up thru the misfire zone , strobe light should be virtually continuous, any uneven gaps in the strobe flashs show an ignition fault, if thats all good then you can concentrate on the jetting etc.