[LX5liter]

Im not sure if you would need to move the tranny mounts, there should be enough adjustment in the slip yoke and tranny mount to absorb 1 inch pretty easy. As far as the set back, it all helps for weight transfer in a drag car, and I would imagine it would be good for an autocross/roadrace car as well. Does it set your wheels back as well, or just the engine? It might make things tight against the firewall, and your exhaust might not bolt up as easy if you are using your old system. Maybe somebody who has one can chime in, it would be good to know.