I have a 360 63 and there is an issue with a bulge in the firewall for the windshield wiper motor. I gets in the way of the distributor. You have to move it back at least 3/4 inch and then all of the normal 64-66 parts can be used to set the car up. If you use a 340/360 the drivers mount has different mounting holes on the engine block. I used shumacher mounts.
Good luck,
Mike