I would like some discussion about MSD 2 step  pro,  con , things to look for never had any experence with one . The stall will be between 2200 and 3000 . One concern I have is pump shot in carb mite it need more or less. My thought is the pedal is already to the floor so no pump shot is needed there , but is there a chance of too much shot and maybe riching it too much. I have tried it and did not see much change in my 60 ft. time. Waiting for comments    Thanks Harry