Talking about poly engine mounts for the Superformance....
If you've got a small block, contact
http://www.olthoff-racing.com/ for the good stuff.
If you've got a big block (460-based or FE), these are the trick:
http://craigscobras.com/parts/mounts/index.htm
BTW, I believe Craig is the ONLY supplier of FE poly mounts for the Superformance. I just purchased a set to replace my rock-n-roll rubber mounts. They are truly impressive!
While we're talking Superformance-specific mounts, here's a bolt-on replacement poly mount to tie the tranny down:
http://performanceunlimited.com/cobr...ransmount.html
Rodger