Recent content by Pvierra61

  1. Pvierra61

    Rpm and prop. Problemson 1979 Thunderbird formula model f233c

    Hello I am having a problem with my 1979 Thunderbird formula Model F 233 C here's the problem I have recently rebuilt the motor from the bottom up on an MCM 260 do about 300 horsepower and I'm having problems attaining my topping and wide open throttle speed which the book States should be...
  2. Pvierra61

    Mallory advance curve

    What is the basic advance timing curve on a 1979 mercursier mcm 260 thats in a 23 ft. Thunderbird formula f233. And what color springs should i put in the mallory mechanical advance ​
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