backfire

  1. M

    Backfiring on decel

    Hey guys. Second time here. My friend and I just switched his 1980 malibu drag car to open headers. Ignoring the obvious which is that the carb should be rejetted, I’ve got a few questions. First of all, how many steps in jet sizes should we start at? Also, after doing a 6k pull, the backfires...