not always true. A chip can still change the shift curves of the auto trans, so it shifts quicker, eliminate the speed limiter, etc.
But, it is better to do the mods first if you are getting a custom chip so that it will take advantage of the mods.
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5.0, Holley heads, 1.7 Scorp Rockers, Stealth intake, Holley 600 carb, Holley Mech. Fuel pump, MSD 6Digital, MSD distributor, Hotchkis upper/lower rear control arms, FMS B Springs, 3:73 (8.8) rear.
Production # 9,377
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