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Old 06-17-2005, 08:27 AM   #30
64fleetside
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Join Date: Apr 2004
Location: arkieland
Posts: 1,070
The engine is simply too big & heavy & the truck(also big & heavy) has the aerodynamics of a brick, 20 mpg can't happen. I had a throttle body 91 454 3500, got 13 w/5 spd OD. Brian

Last edited by 64fleetside; 06-17-2005 at 10:46 AM.
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