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Re: 305 v8 or 250 I6 for better mpg
Sounds like a carb tuning issue. That thing has to be running rich to get 6-8mpg. I second the 2bbl and 3:08 gears and HEI, which should be good for at least 15mpg if not better. It won't be a powerhouse, but at least you'll still have the sound of the good ole' 350 
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'86 GMC C30 Crew ~ '86 C20 Crew ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '74K10 ~ '71 Cheyenne swb ~'50 3100 bagged ~ '80 Wife ~ Late model kids
Last edited by LEEVON; 09-17-2007 at 01:17 AM.
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