hello, the bike is a 77 cb550k with the 4 into 4 exhaust pipes. im currently swapping out the motor with a 77 cb550f motor with 4 into 1 exhaust. Will the 4 into 4 exhaust fit on the motor that had the 4 into 1 pipes? i planned on using the 4 into 4 exhaust along with the carb that ran with it.