One other thing keeps nagging at me, since I don't have a bench setup or special lines to allow final output testing of injectors:

Could I have crud in the fuel distributor, say in those little screens? An old 80 volvo we had got some really bad fuel and contaminated the entire system. Rusty micro silt in every screen, nook and cranny of the system, including the injectors and distributor.

If I rigged up a set of special lines so I could measure injector output, does there happen to be a range published for that type of test? Seems to me it was 5cc/min at idle and 25-30? at WOT for a Rabbit engine on a K-series CIS