LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Do I need a re-program ?

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Old Dec 15, 2003 | 09:37 AM
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Van5150's Avatar
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Joined: May 2000
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From: Haverhill MA
Do I need a re-program ?

I just installed a Stage II transmission.
http://www.ls1speed.com/catagory.cfm?catagory=trans

I also put in a 2800 Vigilante.

I hooked up a vacuum line to it ( I assume it is for vacuum) and the shifts dont feel right.

Do I need a PCM re-program ?
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