US Cartool and Schumacher
The spool mount is the easiest. I hate Schumacher's design as you have to cut the driver side saddle short and drill a new hole. Just take the time to build a Direct Connection k-member and use stock mounts. Some of his other mounts allow you to go back to the original engine, but not easily with the V8 spool mount stuff. No need to spend the money or time to reinvent the wheel unless you're doing was Rob is doing and stuffing it into an early A.