I agree with Chris make sure the pick up wires are correct. If I remember correctly the timing will retard when you rev up the engine if they are backwards. I have also seen if the cam is a 7-4 swap and you do not have the wires in the proper firing order it will behave the same.


71 Demon 451 SR All Motor Chassis car 2475 w/driver Best ET 9.08 @ 150.05, 4787 Corrected Alt