Looking for a little guidance. I have a chance to pick up a Monster brand Super Duty 700 R4 with a 1650 stall converter for$1500, ready to run. It’s built to handle 600hp and I’m running a small block that’s well under that. Is this a decent deal to move into an overdrive transmission? Assuming I go this route, which adapter plate would be a good choice to bolt it to my 350 block? Also thinking this would be a good time to go to a 3.73 rear gear instead of my current 3.23s. Thoughts?