Ok, tried this on the injector line, it seems pretty solid, and was way easy to hook up (the shack had the zeners):
Unless someone can troubleshoot the transistor version, I'll update the diagrams accordingly.
It was giving me about 3.1% duty cycle at idle on the one injector (guessing that = .3gph), and would jump up when I gunned it, and about 18 pulses/secnd at 2000rpm, v.s. 9 at 1000rpm which is pretty close for a mpfi 4 cylinder. Using the debug code a couple posts ago.
Will probably do something similiar to the vss signal if I can't get that working better.