horsepower

  1. B

    Rebuild Options For 50-75 More Horsepower?

    I need more power! 3.7L with 210K miles, but we live and drive at high altitude. Pulling my little boat over the Utah mountains isn't working. How can I get another 50 or 75 ponies? If this were a V-8 I'd rebuild it and get some better heads, a little bit of cam and make it flow. But, who...

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