If you can find a machinist who is willing to do a little creative metal butchering, your "216" can become a pressure-lubricated engine instead of a spray-oiler, bored and stroked to 258 cubic inches or so. However, that involves major modifications to the block and crankshaft, and different connecting rods and pistons. It makes for the ultimate "sleeper"- - - -looks like a 216, and has the torque and horsepower of a 261.
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!