That first link is great! Here are some pics of an R3 Studebaker type air box. It is 13 1/2" wide, with about 2 more inches for the throttle linkage, and 11" front to back. From the back carb bolts to the back of the box is 2 1/2". Mounted side ways I think it would work. R3 Air Box

Last edited by Beater of the Pack; 01/27/09 06:21 PM. Reason: Pics
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain