Tom, thanks for the suggestions. I'll try to find one of those TBs and HEI distributors. I have a few HEIs that I've snagged from the boneyard, so I have an extra to exchange. Worst case scenario, I can still convert a mechanical HEI to computer control.
What did you do for the air cleaner?
This isn't my manifold, but it looks like this one:
http://cgi.ebay.com/ebaymotors/Clifford-...sspagenameZWDVW