To gauge how much noise the engine is actually making, take the fan off and then make a highway speed run. If we could figure out how to put a thermostatic fan clutch on that only drives the fan when the air coming through the radiator is hot enough to need the fan (idle/traffic) I believe higher speeds on these old rigs would be much more comfortable.
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!