I see a lot of posts about trying to find the right pulleys. This is a common problem throughout the hobby mostly because pulleys did not have part numbers stamped on them and had stickers or tags wirh wire attaching them to a bolt hole when new.

Here is a link to a web site many of you should keep handy and will solve a lot of your problems.

http://bouchillonperformance.com/BPEpulleys.asp