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      Steed73 replied to the thread Best Oil.
      The new oils have less zinc in them and that can damage older model engines. You need an oil with high zinc content or you can use...
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      I have had my 73 Mach 1 since July of 1973 (original owner). The car came with the bezel painted in body colour but then covered by the...
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      Steed73 replied to the thread 72 Mach 1 Q code cobra jet !.
      Ford rated both as having the same horsepower even though the closed chamber had more compression. The closed chamber also had more...
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      Steed73 replied to the thread Carb Replacement.
      I am not a mechanic so I had someone else do the install. From what I was told, the butterflies would not open fully so he had to cut...
      • 54. 9-13-12 (7)_InPixio 1.jpg
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      Steed73 replied to the thread Carb Replacement.
      I tried a 670 cfm Proform carb. Had to modify the egr plate but the carb performs wonderful. Eats more gas but gives more power.
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      Steed73 replied to the thread Why our cars get bad fuel milage.
      I have a 73 Q code with a 670 cfm Proform carb. I'm getting around 8mpg in the City but 15 on the highway. The factory carb got me...
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