Getting the H/B rebalanced was recommended by Steve (of Buffalo Enterprises) so I took it as a "must". The problem I had in finding a shop that could do the balance, was that the center hole was so close to the average performance shop's arbor diameter, that the centering cones wouldn't chuck up. I finally found an old timer in a little performance shop who turned down a couple cones that would center the balancer on his arbor shaft. He took it as a challenge and was more than fair in pricing his work. The end result was down to 3/10ths of a gram and there was noticeable metal removed. Steve wasn't kidding when he said to rebalance!
As for the pulley arrangement...running a single belt over the early waterpump/adaptor plate combo, gives me less stress on the pump bearings and the proper pump speed. The adaptor plate centers the fan in the radiator and overheating, even with the a/c is no longer, part of the equation.
Dave
