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so what you are saying is, with some tuning , i should be able to make this set up work, i have the motor in a 1968 dodge coronet, 727 with stock covertor and i have 3.55 gears,



Stock converter is doing you no favors, and the 3.55 gears are marginal but doable. The problem with the stock converter is you're only going to get a 2000rpm flash out of it and your motor is going to be soggy and not respond the best when you snap to full throttle and the motor is not able to flash stall to above the rpm where your total timing is in at. The smogger CR motors are more sensitive to the correct balance of timing and stall than this same cam in a 10:1 440 would be.