RUMORED BUZZ ON BLACKTOP 20V 4AGE

16V and Silvertop engines all utilize a rubber dampener involving the center A part of the primary crank pulley and both of two outer pulley rows. The Blacktop on the other hand only has dampening over the pulley row that may be about the side nearer on the engine, as such the outwards facing row to the pulley that's the one that most likely drives