I'm not an RPM addict- - - -long stroke crankshafts produce gobs of low end torque in the speed ranges where these engines were designed to run. 7/16" more leverage on the flywheel should make a noticeable difference, combined with the higher compression ratio more cylinder volume with the same combustion chamber will produce. If I can out-torque a 261 from around 1500 RPM to 3000 or so, who needs a screaming high speed engine in the first place?

One of the old adages every dirt track racer knows is "Horsepower is to brag about- - - - -torque wins races!"
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!