i have an 88 mustang gt and about 3 months ago i replaced the speedo gear cuz my speedo was bouncing around and it was fine up until yesterday when it started bouncing around again. do they make metal gears for it so the plastic ones wont strip out cuz i am almost certain that is what happened again. or what else could be my problem. also i replaced my lower intake and after reinstalling the distributor my timing was off a little bit so i set it at 12* and after plugging the SPOUT connector back in it seemed it jumped like 2* or so is this normal? is 12 to high? should i compensate for the jump? last night it seemed to be smoking from the exhaust to i dont know if it was just cold out and i was thinking to far into it or what but today it isnt doing it. it performs fine and nothing seems to be wrong. please help any would be appreciated!!