I'm running a 71 RR w/stroker HEMI (Arruzza). W/PS and Brakes, w/Air Grabber, STAGE V intake. I'm using his mount system with solid on drivers side and 440 biscuit on pass. side., stock exhaust mani.and not a HEMI K frame. No problems at all with AG, although it is close on pass. shock mount because of the larger STAGE V valve covers. Used an 1/8 inch alum shim between biscuit and K and everything has been fine for years. We made our own AG base froma 6 Pak one.