recalibration

  1. J

    2000 mustang t5 swap

    I have 5 speed swapped my mustang it has stock gears in it but when I hook up the speedo to the trans it just winds it all the way to 120 when I’m barely moving and I’m unable to get above 40 because it thinks it’s going 120 and cuts fuel is there any easy way to fix this other than just...
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