I'm glad to see that at least a few people aren't panicky about winding a stovebolt engine up above a fast idle. Chances are you just need a hot valve adjustment to quiet things down a little. If the oil pressure is good ad cruise speed, you're not likely to be having bearing problems. Enjoy the ride!
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!