You should get a one wire alternator. Its just easier to deal with. I think the one I got has a 3/8" pulley and uses the standard bracket that is available from Classic and others. The Delco original one wire is a 40 amp. The one I just got from Summit for my 235 project is an 80. The prices and everything I paid is in the Project59235 writeup.
http://devestechnet.com/Home/Project1959235 in the Detailed Parts List section.
Forgive me, but I just dont like Eastwood. They can be $200 more expensive on items, then on the other hand, they can be cheaper but for some reason. It may be okay though.
