Frank since you are building this engine in a "good old days" kind of fashion, wouldn't it be cool to find an OLD Engle grind, like the 150 or 160, like they used in Underdog, and shoot for the moon as far as compression ratio. Milling fins off makes the heads lighter too,
Seriously, something in the vein of Doug Gordon's 2074 or one of Don Crane's motors would be super cool.
Just thinking.
Jim