There's probably only two ways to describe gas flow through a stovebolt cylinder head- - - -"Bad" and "Worse"! Somebody posted photos of a 235 head that had been cut apart on a bandsaw some time ago, and the port shapes are just horrendous. There's lots of 90 degree turns and other restrictive features that cause choke points. These engines were obviously built for low end torque with no thought for high RPM operation. That's one reason multiple carbs are such a waste of time.
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!