Good looking carb, and I'm one of the minority here that sees, and have little problems with, Vac Sec'y 4160's on a jet boat. Wish I had a need for it, but it's a non Marine carb, needed for one of my projects with a full engine cover. (Already covered with a 900 I picked up I think).
I do agree with Boost though, three fitty is a bit high, granted, maybe a new part, but second hand. Might be interested in it for a street project I got roped into though. Needs a twin, but if the price is right, I'll go the fitty bucks!
Ray