I'm putting the 402 bbc into my 72 after it haveing a sbc in it as long as i'v had it. Now I'm looking for pulleys and the most common setup i see is a 2 groove water pump pulley, and a 3 groove crank pulley such as these.
http://cgi.ebay.com/ebaymotors/ALUMINUM-PULLEY-SET-CHEVY-BB-2-3-GROOVE-LONG-PUMP-BBC_W0QQitemZ230086819303QQihZ013QQcategoryZ38656Q QrdZ1QQcmdZViewItem
I don't have a/c, just alternator and p/s. What belt goes in what groove with this setup? I was thinking there should be a set with with a single grrove water pump and a two groove crank.

I couldn't find the setup that you are looking for either when I upgraded to a big block. By the way don't buy cheap pulleys, I had a water pump pulley come apart on me and I wasn't turning real high rpms either, just normal street driving. Good luck.