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03-11-2011, 11:00 PM
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Senior Member
 
Join Date: May 2002
Location: Hammond, WI
Posts: 1,817
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Decreasing carb size to increase gas mileage?
Hey guys, I've searched to see if I could find the info that I'm looking for, but can't seem to find it. Anyhow, what I want to know is if I change my carb from 750cfm to 600cfm will I gain any mpg's? I have a '69 Longbed with a 350, 700r4, 31" tall tire, and 3.73 gears. I know that switching to EFI would increase mpg, but that just isn't an option at the moment. Any additional knowledge would be appreciated.
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Mike 2001 Dakota R/T - Silver CC - 1 of 1671 •360 w/46RE •392 limited slip 1972 Chevy Suburban - Turquoise/Black 1969 Chevy C/10 - Blue LWB •350 w/ 700R4 •3.73 posi •PS PB A/C - SOLD  Using your turn signal is not "giving information to the enemy" 67-72 FAQ Quote:
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