I use what were sold as "Mighty Mounts" IIRC on both sides, along with a Competition Engineering torque strap they sell for 5.0 'stangs. It's not a bolt-on, but didn't take that much modification to work on my E-body. See link HERE.

I set up the strap with just a bit of free play to keep the vibration transfer down, but it "locks up" as soon as the engine tries to torque over. Works for me...