do what stanger said....but by the sounds of it, you got a problem besides different gears.
sounds like 3.55s or 3.73s 2000 rpms goin 60.
but if you had a different gear ratio...your speedo wouldnt be off exactly 5 mph all the time. it would be a off by a percentage.
like if you were going 10 mph it would read 12 mph
so if you were going roughly 50, your speedo would read 60.
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2002 Sonic Blue GT -- 5 Spd
Accufab 75mm TB, C&L Upper Plenum, FRPP 4.10s, Hurst Billit Shifter Plus, UPR Off-Road X-Pipe, Magnaflow SS Catback, K&N FIPK II, Mach 1 Chin Spoiler and Grill Delete. Diablo Predator, 2003 Cobra Wheels
Best Pass 13.75 @101.24
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