Something to keep in the back of my mind as I look for parts.
My 45DE4 has the CEI remote amplifier on it, which I believe was a recall 
replacement for the opus units originally fitted.
Chris King   - cbking@alum.rpi.edu
http://members.home.net/kvcbk/
               
---------- Original Message ----------------------------------
From David Riker <davriker at pacbell.net>
Date:  Mon, 04 Feb 2002 07:55:31 -0800
>I knew a couple of people would verify/correct some of my original post.
>1500 distributors do have vacuum retard.  Disconnecting it allows more total
>advance under high vacuum situations.  Its original function was to retard
>timing under low load thus reducing NOX emissions.  Again, if possible toss
>the 45DE4 distributor in the trash and replace with a 25DM.  The advantages
>of the 25DM is vacuum advance instead of retard, and a remote electronic
>ignition amplifier which is more reliable than the opus unit on the 25DE4.
>The 25DM was the distributor supplied under warrantee to replace faulty
>25DE4's, and came standard on the late MGB's.  
>David Riker
>74 Midget
>63 Falcon
>70 Torino
>http://home.pacbell.net/davriker
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