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70Wcars · 01-23-2007, 12:26 PM

Lots of variables on an older motor, but look for compression no lower than 120 on a motor still tight enough to run well...Vac. depends on cam, but a stock set up should be 15 or more inches merc. and steady if no leaks...

Dan S.

01-23-2007, 12:26 PM	#2 (permalink)
70Wcars Member Join Date: Jan 2007 Location: Texas Posts: 55	Lots of variables on an older motor, but look for compression no lower than 120 on a motor still tight enough to run well...Vac. depends on cam, but a stock set up should be 15 or more inches merc. and steady if no leaks... Dan S.