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Old 02-09-2010, 01:25 AM   #11
ToughBowtieTruck
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Join Date: Dec 2009
Location: MI
Posts: 111
Re: 88-90 454 gas mileage

Quote:
Originally Posted by munger View Post
wow i didnt think it would be that bad maybe ill be better off getting a 81 3/4 ton 350/4 speed
14 mpg with mine in a '77 4x4 stick shift and rising.......stock air cleaner and exhaust manifolds help a lot, even though the engine itself is bored out with Edelbrock goodies sitting in it.
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