Be careful about "unshrouding" the intake valves- - - -unless you enjoy changing valves every few months. The intake valve is recessed into the cylinder head for a good reason- - - -to shield the edge of it from the flame front as the cylinder fires. I've got a very nice 848 head that was given to me after a couple of milling jobs- - - -because it burned up intake valves frequently. I can fix it, but the machinist who did the milling had his head firmly inserted into a dark, stinky place! Use the 1.94" intakes for a Powerglide-equipped 235 spray oiler engine and pocket port the tulip area of the port above the valve, but be sure to keep the protective lip in place that deflects the flame front away from the edge of the valve.
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!