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basic differences between 89 and 90....
90 had larger front and rear brakes
90 had 10.3:1 compression ratio (89 was 9.8:1)
90 lost the t-vis (went to a smaller port, so not a bad thing)
90 has smaller cams (wider HP curve, but earlier cams will fit... shift the curve but make more power)
i *think* those are the only differences in the US
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1) 2004 IS300 Manual/LSD/Sportdesign 2) 2010 Corolla S 5 speed 3) 1986 MR2 "MK1.22" 5sfe/s54 swap 3) 1995 Ford Explorer 4x4, TT/AAL/custom shackle lift, 31"s
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