69 Jeepster v-6 w/Rochester carb..went to put in carb kit,broke 1 stud trying to remove carb from intake manifold.I replaced pump and gaskets,now gas really pours thru it..I think I need to remove carb to get at ball bearing in very bottom of carb,thats possibly not stopping the flow of gas as it should..should I remove intake manifold or will I really be going backwards then