I did a cam and intake change, and added a crane HI-6 ignition. Now when The motor is cold it wants to back fire through the carb. I have checked the timing, twice, firing order, checked for coil bind, I am running a balancer cover so I know the timing is right. While I am sitting here I just thought, I am using a small cap unilite, Could the coil possibly be firing 2 cyls at low rpms???Any Ideas?
Later
John