What rear gears came on the factory 1987 GT 5.0 with an auto transmission? 2.73 or 3.08 or 3.27 ? What is faster at top end? speed density or mass air? If you lined up both cars one with speed density and the other with mass air converted and the cars both being an 87 GT 5.0 completley bone stock and both automatic with same rear gears, who would have more top end, and win or would they be equal?
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