BBK Face Gauges

[skiwesser]

Santa brought me a set of these!!

QQ: I have a 88 GT & the gauges are

for my year model but they're 140 MPH.

I have an 85 MPH speedo, i know 140 MPH

were avaliable but what do i need to change

to change so it will be calibrated correctly?

I'm sure somone here has done thi b-4.

Thanks SKI

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88 GT subs,pullies,1 1/2 shorties,F.M.,3.73's,PRO 5.0 shifter 9.39
cheap s.tires 8.881@78.09 D.R.'s