You dont have a transmission chip controller, as u put it. You can shift manually, or get a shift kit that alters the shift points.
And what mods does your engine have? If none, or little, you wont gain anything shifting higher than 5k anyway?
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1993 GT/AOD
'93 Mustang GT
[This message has been edited by Mach 1 (edited 02-10-2001).]