Try the top speed calculator on this website. See what your rpms should be at a certain speed with the 4.30's, then go for a drive and test it out. Then you'll know for sure if you have 4.30's or if it just says so on the gear. If you are indeed running 4.30's it's possible that something is wrong, and you'll have to have it checked out... Otherwise try to get some solid track numbers so you really know if it's faster or not...
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2000 GT Conv. 5speed
Triple Black
Current Mods: K&N, Mobile 1
Upcoming Mods: BBK Longtubes, BBK H-pipe w/cats, MagnaFlow Cat-Back, and much much more
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