rotor button is 180 degrees? or the dizzy in the crank? i tried switching the button today and the screw wouldnt go in the opposite side...so i think that is not the problem, unless im missing something...and the dizzy is in the correct position also. the distributor is sparking, i put a timing gun to it. the car is also in time. i am thinking it may be the head gasket for some reason. it reaks of fuel in the lines too.