better motor mounts or torque strap???

i swapped from a /6 to a 360 in my 64 dart and i got the shumacher swap mounts but i don't like them. the engine has a pretty big cam in it and it likes to dance around in the doghouse because of the rubber biscuit mounts. would a torque strap help keep this dancing monster from shakin all over the place? what are some options for this? how is a torque strap applied and will it help with the safety of the setup? i WILL be taking this car to the track on weekends this summer and don't want to have my motor jumping out of the engine bay and causing trouble....
thanks!
-tim