ok so i just put an olds 350 in my 87 cutlass.. and we took out the a/c.. and we keep tightenin down the waterpump/alt belt and doing our best to str8n it.. well it seemed str8 and it was workin great for about half a tank.. no squeels.. ntohing.. then it started squeeling a bit.. then the freakin belt flipped on the pulleys and jammed.. so it doesnt spin.. i cannot figure out how to fix this problem!! someone please help!! it looks str8 and everything and we tighten it super tight..