Hot Air Intake Engine Location

[POPO AGIE]

There's supposed to be a heat shield bolted to the front of the manifold with a tube pointing up, straight below the HAI. In your case it sounds like it's stuck open.

I've made a couple of these from sheet metal and even aluminum foil and wire to get past the smog man.

A good pic, but it's from a minitruck 22re:

Some 2f pics:

And the unobtanium part you want:

I replaced that with a plate and fittings that circulated coolant to the intake manifold under the carburetor and worked just fine and more durable. When I installed a header the factory version went away.