To go along w/ what Z-ya just said, I'm gunna share a lil secret w/ ya nategdizzle...
You can get Ford 370cc injectors for oh... say... $60-$80 for a set of 8 (usually sold in sets of 4) from ebay. Why, there's some on ebay right now!
http://cgi.ebay.com/ebaymotors/2-3-Ford-Turbo-35lb-Brown-Top-Injectors-Mustang-SVO-TC_W0QQcmdZViewItemQQcategoryZ33554QQhashZitem130023215861QQihZ003QQitemZ130023215861QQrdZ1QQsspagenameZWDVW
And look.... slightly larger than those!
http://cgi.ebay.com/ebaymotors/36lb-Turbo-Ford-brown-top-injectors-Turbo-Coupe-SVO_W0QQcmdZViewItemQQcategoryZ33554QQhashZitem330025899876QQihZ014QQitemZ330025899876QQrdZ1QQsspagenameZWDVW