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fuel efficiency

  1. 221, 260 or roller 302 for best mpg?

    All Ford Techboard
    I'm wanting to build a Ford V8 for best mpg. My thinking was to start with the smallest one, the 221. I've been studying on the best recipe like highest possible compression (this article in Popular Hotrodding is great- Engine Compression Ratio - Tech - Popular Hot Rodding Magazine), free...