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			This is a example of why a signiture with some general info on your car helps.  This a 305 or a 2.8 RS? 
 
Shouldn't matter though .. anyways....normally its a 1156 bulb.  Standard single filiment taillight/reverse light bulb. 
 
for timing, a lot of TBI people run 5-6 degrees base advance.  You can do that but if you hear pinging then back it down to 2-3 degrees.  Remember to disconnect the EST wire.
		 
		
		
		
		
		
		
			
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				2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57 
  
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
			 
		
		
		
		
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