Thread: 1966 GMC 305 V6 Service
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Old 08-12-2013, 11:24 PM   #111
TommyDuncan
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Join Date: Feb 2013
Location: Boulder City NV
Posts: 214
Re: 1966 GMC 305 V6 Service
Quote:
Originally Posted by duallyjams View Post
what's the rpm on the engine when your running 60-70 mph
I did the math and 60mph should be about 2150rpm. 70 should be pushing 2500rpm.
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