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Re: 305 v8 or 250 I6 for better mpg
sounds like the first thing i need to do is get my carb tuned right. i just bought it brand new a few months ago so i surly shouldnt need rebuilt. the engine already has HEI and i wish i knew the specs on the cam but i dont. it had that cam in it when i bought the truck. how do i know what size rods and jets i have now and how do i determine what size i need to put in. if thats even the problem.
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