I am finding that after talking with some of the Pontiac guys in the know, that most of the time the big gear thought [3.55-3.90-4.10] are not needed with todays technology.
I have 3.90's in my car now and have been told with my combo [Stump Puller cam] I can do with a set of 3.23/3.36 gears, don't need the tall ones any more.
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color me gone
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