Just got back from taking it on a 20 mile 'test drive'.......
It's a whole different truck now.
Before I left, I cleaned the original plugs with my wire wheel and threw them back in. No more dead miss. As good as my wagon runs on Autolites, I guess this truck hates 'em.
One other thing I noticed, which I thought was a little funny, when I work the heater controls now, the selector door moves with 'authority'.....press 'heat', THUD. Press 'defrost', THUD.
I guess the added vacuum is the reason for it.
Hopefully all this will translate into MPG this truck has been sorely lacking.