Ya, red82gt, I read one time advancing the timing was the about the same as putting in a chip. So, they said to not bother buying one.
Brad
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1991 Mustang GT Conv.
K&N air filter, Cobra manifold, 65mm TB,
Adjustable fuel pressure regulator, 180 thermo., Mac headers,
High flow H-pipe, Force II W/2 chamber Flowmaster,
Hurst Shifter, 3.55 gears, subframes
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