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tucsonjwt · 07-06-2010, 10:31 PM

83 C20 stock Mr. Goodwrench 454 (slightly bored over) rebuild with 4 spd granny and 4:10 and gear vendor: 11 city, 13+ highway (but can go down to 9 city when using it as a dump truck or idling a lot.)

07-06-2010, 10:31 PM	#3
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,198	Re: yet another MPG thread 83 C20 stock Mr. Goodwrench 454 (slightly bored over) rebuild with 4 spd granny and 4:10 and gear vendor: 11 city, 13+ highway (but can go down to 9 city when using it as a dump truck or idling a lot.)