[kyle_blake]

Hi Tom,

In post #15, you will see a picture of vacuum diagram housing. There is a 2 holes, one of them is where a ball goes. I believe it's for blow out prevention. Which ball was my question. The arm I am referring to is the diagram's "rod" . You know, when one goes to test the unit before you put in on your car to see it holds vacuum.. Push rod up, put finger over cork gasket it should hold if no leaks.

That's all I'm saying. With the ball there, it plugs the hole, thus you have to wiggle it around until ball moves out of area.

You will in the picture a small ball and a big ball next to it, on the table.

Second pic, I dropped the big ball into the slot. I decided to run small ball. I've never ran a ball in there before.

The other issue/question aside of that, was the whistle. Sorry for the confusion.

1 - check ball size - you say big goes in there, holley tech says small, pics on internet show big one - all rebuild kits give you both.
2 - whistle - carb spacer plate gaskets most likely.. still working on that!

I appreciate your help greatly. Thank you