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Shaky · 04-19-2009, 11:38 AM

Driving to Alaska in a '67 C10 with a stocker 250, 3-speed manual, and a 3.08 rear we got 18 mpg. That's with a spare mounted to the roof of the cap.

With the 4-barrel it varies from 12 to 18 depending on how heavy your foot is...

04-19-2009, 11:38 AM	#91
Shaky Six in a row makes it go... Join Date: Mar 2009 Location: Vacationland: Maine Posts: 1,346	Re: Post Your Straight Six Pics! Driving to Alaska in a '67 C10 with a stocker 250, 3-speed manual, and a 3.08 rear we got 18 mpg. That's with a spare mounted to the roof of the cap. With the 4-barrel it varies from 12 to 18 depending on how heavy your foot is...