Does anyone here run an ATI Super Damper on their big block and if you do what pulley are you running on the crank because the one I've been using is way off (about 1/2") and am wondering where you got yours, for reference it is a 2 grove pulley that is about 3 1/8" tall and came off a cast crank 440, if it helps. Spacing out the water pump pulley is out of the question because I don't have the space between it and my electric fan. And all I run is a water pump and the alternator. Thanks!