Here is a link to the pictures of the link that goes from the bellcrank on side of block up to the carb. It is in comparison to a standard transmission link. The link from the acellerator pedal to the bellcrank is also different but still on the truck and not easily photographed. It too is adjustable but I am going to assume that it did not get changed on your truck going to the 4bbl carb. Tim has a part number fot a universal Camaro rod that is on my truck right now for the dual Carter/Weber carb setup. That is why the link was on parts shelf and available for the photo op. If I were going to try and duplicate the original piece, that universal rod would be a great starting point as it would basically just require the bends. The adjustable end is round instead of square but still closer than anything else I think you will find.
http://community.webshots.com/album/583181410LoUAYI?vhost=communityHope this helps you out.(and no, I don't want to sell the rod I am not currently using in case you were wondering)
