when i did this, i put a 2x4 between the engine and frame mounts and that gave me enough clearance. take off the distributor cap or even remove the whole thing if you feel safer, remove the starter, and i'm taking that you have headers, so if it's easy enough, get rid of them too. then you should have plenty of room to work around. also, you probably already figured that you can get some extra working room by putting the car up on jackstands. one other thing, move the tranny lines to the one side if there in the way.