[HawgRyder]

Sherwood....my thinking exactly on the design....making them interchangable as far as size is concerned.
I was not thinking of any other application other than Pcars...the spacing between the bores is probably different for other engines (118mm for our engines).
Kenik...the units are broken down (dissassembled) right now...and the reason for the slide idea is because one of the units has a big crack in the housing where the flange meets the upright tube...probably an air leak.
The corrosion is extensive...from sitting with the throttles closed for more than 10 years I think.
It must have been galvanic action between the alauminum core and the brass butterflies.
If this slide thing works out...you have first grab at the remains...I promise.
As to making more of them....good idea...can I get rich doing it?....LOL
I am keeping the design as simple as possible with hopefully...many pics to accompany the build.
I will make the measurements available as soon as the design proves out (actually works)....
Bob