mjm4jc

84 SE----The FSM says that after warm-up the fast idle cam should move away from the little roller. My does not. I'm thinking that it is because I set the fast idle at 1,500 via the thermowax screw. Will this affect idle or acceleration by running too rich after the car is warm? I'm asking because the car runs at it's best when it's cold and fast idling. After that----real rich and slight backfiring.