Ive got a 96 GT auto, and i read in MM&FF that the only thing a chip does for an auto is help the converter lockup...for better shifts you need to get a shift kit, like a B&M or TransGo.  Im actually thinking of getting the B&M because of the 4R70W and i dont know if the TransGo for the AODE will work.  Hope this helps 
 
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1996 GT full exhaust and underdrive pullys: 14.6 @93 MPH 
		
	
		
		
		
		
		
		
		
		
		
	
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