"Drive it like you stole it!" Most of these old engines don't get enough high RPM full throttle time to keep the combustion chambers and valve seats cleaned up and the valve stems from getting sticky. I'd suggest giving it a heavy dose of Marvel Mystery Oil in the gas tank, or some other type of top cylinder lube, and take a long trip at highway speed.
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!