He could always swap for the Weber-look-alike, 8-stack injection if 'the look' is a large part of the "Weber" choice.
Yes - Borla makes one for the 302 -
http://www.borlainduction.com/200099-v8-kit-ford-302-35mm-air-horn.html
and for the 427FE -
http://www.borlainduction.com/200073-v8-kit-ford-427-fe-35mm-air-horn.html
along with the 351, 460 & others -
http://www.borlainduction.com/products/search.aspx?keyword=Ford
I believe they supply the ones that Roush sell....