Help with Bosch number on fuel distributor

[urq]

I have a freshly rebuilt Bosch Fuel Distributor which I was told (some years
ago) would be a proper cross-over for a 1978 Audi Fox (YK Engine code).  It
certainly is mechanically compatible, but I'd like to know if anyone can
provide more confirmation than that.  All the Bosch books I have us a FD##
designation.  I did a web search, and found a lot of near misses, but no
match.  The Bosch number is 0 438 100 133 ... hopefully someone kept around
a 20 year old reference book that still had the number!

TIA!
Steve Buchholz
San Jose, CA (USA)