my Nova has an interlocking mount on the driver's side, with what appears to be a gm part number on it. it looks pretty impossible for the mount to move more than about 1/4", even if the rubber is totally gone. so, yes, i would say it would be safe to use on a high hp application.
you don't plan sincerity.
you have to make it up on the spot.
wanna hear about 20 years ago when i was too smart to know any better?