I have recently put an Edelbrock cam and lifter kit in my brothers truck since the last one the rockers were over tightened and flattened the cam. Well since we were going to take it apart any way and we've had success with the Edelbrock carbs in the past. We thought we'd change things. Now its back firing thru the carb and I can't figure out why. The timing is set about 12 BTDC. I think it could have been the adjustment of the rocker arms on when we put it back since everything else checks out. But I was wondering if there is some stuff I could try.
Thanks, D.L. Man
P.S. There is not emissions stuff on the truck.