I appreciate the feedback guys. One thing I didn't think to mention in my first post is this vehicle does NOT have a catalytic converter, it never did. If there were still leaded gas pumps around, the larger nossle would fit the gas filler tube.
Without the smog pump belt, the pumps just idle, no further modification, the vehicle seem to run fine for a 30 mile each way trip.
With the added information, any wisdom definitely welcome.