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Old 06-16-2013, 10:19 PM   #32
dragginmetal
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Join Date: Nov 2007
Location: Tx
Posts: 1,011
Re: How-To: 88-91 speedometer calibration 25085515 91' tach upgrade

Tommie.
Im getting ready to do this mod but i have a question. On the 614street.com, the chart is different from the chart in the mag (page5). Im using .747559.
You said you had to do it more than once using the 614streets chart, so i was think of using the mag. one. Which chart do u think i should use?

614streets
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Mag articular page 5
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