Just noticed this on ebay for all the performance guys!
BELIEVE TO BE STRAIGHT 8 BUICK. 8 3/8" between 1st and 2nd port. 17" between 1st and 3rdport. 25 !/4" between 1st and 4th port (aprox). ALL THREADS GOOD
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2472423569&category=34198
BELIEVE TO BE STRAIGHT 8 BUICK. 8 3/8" between 1st and 2nd port. 17" between 1st and 3rdport. 25 !/4" between 1st and 4th port (aprox). ALL THREADS GOOD
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2472423569&category=34198