@krazykuda
The article link to Mancini for the throttle bracket is dead.
If you are converting a 2 bbl engine to a 4 bbl, you will want to get the stock 340 4 bbl throttle bracket. Here's the link for it at Mancini:
Are either of these correct? The one lacks the kickdown lug I think
Mancini Racing Throttle Bracket Kit
Mancini Racing - Throttle Cable Bracket