I am running a MS2 3.57,using the distributor and stock coil on my 87.
all it took was a 1k resistor to "find" the cas signal, the rest was straight forward.
I bought mine pre assembled from Diyautotune.com. i bought the 3.57 so no more soldering, just jumpers.
I have been running my car for 2 years on 10psi no wideband, it has not blown up yet.Its a great system but tons of reading is required to understand everything.
im not a master by any means but you can pm me with questions.