Dan Nixon it just amuses me how this topic always raises so much interest time and time again, even by the same people. You know, I would hate for my motor to go, who wouldn't, but till it does, I've taken the MUST DO cautions, using an OIL with a High Viscosity Index and very high Flash Over Point, very much proven on race motors, and YES, I installed the DMD for the security of the motor, but you of all people should know I would want such a thing on my motor, I'm sure you recall the FISHER DAMPER!!! I do miss the way the REV's increased with the URD Pulley, I'm even tempted sometimes to put it back on.