| TCSA - Transmission Controlled Spark Advance.  It's Moss part number
145-740, listed as N/A.  I believe it should be connected to the
manifold; here's a picture of a pretty stock 1980 (definitely not my
car) that shows where the plumbing goes:
http://www.shoyer.com/mgb/pictures/mgd98-22.jpg
--Steve (1980 MGB) 
-----Original Message-----
From: Paul T. Root
Subject: Re: vacuum line
.. This is a vacuum advance lock out. Sorry, I don't remember it's
real name. Seems it has a 4 letter acronym...
 
> ... 1980 MGB ... small square box ... One line (side of the
> small box) goes to the distributor, which is obviously vacuum
advance...
> ...  Anyone out there have a late model B that they could go look at
and
> let me know? ...
 |