2 barrel to 4 barrel throttle conversion
Mancini has a variety of throttle cable brackets available. Read the descriptions.
I would think that a stock 340 throttle bracket will do. it has the mount for the cable attachment 90° different than the 2 bbl bracket and the 2 bbl kick down linkages usually will work with it.
http://chucker54.stores.yahoo.net/trcabr.html