Never thought about shimming the engine up off the mounts a bit......wouldnt have to be to far, maybe 3/16th".  I just hope the extra height doesnt make mesh impossible......especially since Im running a 15t CB, its already a bit tight.

Would it be better the shim the engine higher on the mounts, or shim the mount up off the chassis?  Might be tight fitting shims inbetween the engine and mount.