We should all like to see pictures of the 12-port 250! If you are unable to post them to this forum, please send them directly to Jack Halton so that he can put them up. Indeed, this engine as you describe it deserves a full article with pictures in the Twelve-Port News.
This engine could provide an interesting alternative for circle-track "stock car" racers, where torque rules and "top speed" is never an issue.
God's Peace to you.
d