One thing people seem to forget is that these engines are not fragile little wallflowers- - - -they were built to run. A quick look at HP and torque specifications in one of my Motor manuals shows 1954-62 235's max HP rated at speeds from 3800-4200 RPM depending on the year of manufacture. Max torque is around 2K RPM. To hear the opinion some of the guys with lace on their drawers, any speed above 2500-3000 is risking a catastrophic engine failure. Bullfeathers! Make sure the rod bearings are good, and plant that right foot on down!
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!