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my 2 cents is that high compression will not make your motor run choppy. and your compression isnt high..150psi? that's on the low side of a healthy motor. Sounds like your valve timing is off and there is an overlap in intake and exhaust valves being open so it's running like you got wild cams and could also explain losing compression. do you have stock cams? did you double check to see if they are installed right? that's all i can think of. of course the best thing would be to have someone look at it but we'll help you all we can.


mikespeed95 - he never said he has 2 mafs', the last (s) is for sensor