I ordered a couple of mustang 70mm throttle bodies from summit, one should be here today. it showed up, I like it....
Engineers: yep, it's a 460 throttle body, the mounting flange is (see pics). The thing I don't like the most about it is the overall "length" from the actual thottle shaft bore to the hose connection - it's about 3.5 inches and you can't really make it shorter. Most of the other throttle bodies (fords anyway) are nice and short like the ones on the firebird in Tubbed's photos. I got the throttle body and MAF off a 96 E350 van with a 460.
Kenny: Run one on each side sorta centered over the "D" shaped section of the manifold.
Tubbed: thanks for posting those, I might try and run the throttle cable up the center from the bottom somehow like that setup. I can only try and make it look as nice, but my welding skills aren't anywhere near that asthetic quality.
since one of the new throttle bodies got here already (thanks summit! one day delivery) I added some pics