My daily is also an 88. It's running very standard Bosch of that era. At some point I took my 93 (same model) and swapped it with newer fuel management, ecu, et

My daily is also an 88. It's running very standard Bosch of that era. At some point I took my 93 (same model) and swapped it with newer fuel management, ecu, etc out of a 2005 Saab. Same valve cover allows you to the stock coils and setup, a timing sensor solves that, and boom, good to go. Well sorta, turns out the 88 is far more reliable and consistent - except for a few hard to find parts... namely the distributor is a total piece of crap after that many years... and it's not very efficient. I get 50% more performance and 50% more gas milage on the uprated one. Difference in reliability is probably... once every 25k versus once every 50k though. Those bosch systems were all over volvo, saab, porsche, VW, Audi, etc and are dead reliable but not very hackable.