Flow #'s and pics are shown in my second post on this thread.
compare favorably to champion cnc ported stock heads.
http://www.turbobuick.com/forums/parts-sale/227328-assembled-ported-iron-heads.html
compare favorably to champion cnc ported stock heads.
http://www.turbobuick.com/forums/parts-sale/227328-assembled-ported-iron-heads.html