[Shamu406]

Plumb it and test before you mount.

The exhaust ports as installed by Newell have a screw adjustment in them. The adjustment is to control the open and close rate.

Thanks Richard, will do. 
By the way, Im in Floral City every other week. Have a lake home on Tsala Apopka Lake, and a commercial property on South Florida Ave. I'm working on, near the Golf Driving Range.