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					Originally Posted by  400Eric
					 
				 
				Been studying that page and cross referencing with some other material that I have. 
  
Those EZL that offer 2 degrees less advance under no vacuum conditions (high load conditions) are for the 2.6 M103 (M103.940). It makes sense when you think about it. With about a 1/4 inch smaller bore, the 2.6 doesn't need as much ignition advance!  
  
Ed, thanks again big time for the info and link! 
Regards, Eric 
			
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 Eric
 
I'm researching a bit more on the potential EZL differences.
Go to page RA15 ( fourth page ) of the below link...
Seems like there were ignition map changes made to cure some problems with manual transmission cars..
 
http://www.tglmarketinginc.com/mbforum/servman/MB%20Service%20Manuals/www.pauldrayton.com/uploadfiles/merc/Service/W124/w124CD1/Program/Engine/103/Tech_Mods/comb3.pdf
 
Ed