I have a 1984 302 in my Mustang. I have a 4 bolt harmonic balancer on it for that year engine. My radiator is a RH inlet and outlet. I put a water pump from a 1968 302 mustang on the block for the correct input/outlet connection to the radiator. The issue I am having is finding the correct waterpump and crank pulley to make them line up. I bought a set of underdrive pulleys, but the waterpump bolts hole on the pump i got are not positioned at the same diameter as the pulley. How can I get the correct pulleys without changing everything.