4.29 and 4.30 (30-7) are the same gear use the pro gear if at possible
4.33 (39-9) I don't think that gear will work very good for you,you may not even see a difference in RPM from the 4.11 (37-9) gear that you have in the car now,just my .02 cents here of coarse
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There Is 1 Thing Better Than Cubic Inches,,,More Of Them