CBP, your first idea probably made the engine run very lean, especially at idle, because air flow through the hoses was uncontrolled. I suspect your second idea made it idle very rich because there needs to be a little air getting into the intake manifold so it will idle.

I'm experimenting with some brass fittings of various sizes in the hose leading to the air duct that goes over the cam cover. I think restricting, not blocking, air flow in this circuit will be what we want. I'll report back with my findings when I learn something.

Axe, you're right. This thread IS fun.

Don, y'all
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