413 Wedge

Sounds complicated if its not a "MAX". I may stick on my big and small block strokers. Unless the price is right.
Sounds more than complicated. He has it, you may want it, he paid something for it so that's where you would start. When posts are vague you'll never get a good answer because from this side it's a crap shoot which means nothing really and you may miss out on a good thing or you may get saved from a bad thing.