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Old 04-03-2005, 06:52 PM   #1
iluvmy72
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Join Date: Jan 2002
Location: Springville, UT, USA
Posts: 1,010
would I get a better MPG with a 4.3

I have a 4.3 throttle body engine and 700r4 tranny form a 88 astro van. The van is in sad shape but the engine and tranny have been rebuilt. Would this be better for economy if used as a daily driver? The truck currently has a standard 350 engine in it with a 4 barrel carter carb.
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