i used the carb, just cleaned it out and changed the accelorator pump. the cam must be from a 351 windsor because the 302 timing order missed and back fired real bad. changed to 351 firing order and runs smooth and strong. the trans did not slip and would shift manually but not on its own, probably a vacuem leak or modulator valve. the rear drive shaft was to short but i had another, have not installed front shaft yet, but yoke turned at transfer case.