Ok...here is the update. I was given fast fill valves in staed of delay valves. The exhausting is normal. The suggested fix is to take a length of rubber hose and drill holes in it. This can then be hose clamped over the valve to act as a silencer. This trick is from some of the old truck drivers trying to "walk" an overweight load across the scales and silencing the dump valves so that the scale attendant wouldn't hear the air hissing. I've heard my Dad mention this method...but I am sure none of the former Truck drivers on here would have done such a thing....
YC1- Can you hear your valves as you drive down the road? Again, I am amazed at the change in stability, but I have to find a way to quiet it down.
The Collins Family
Travis, Kim, Richard, Rebecca
2 Yorkies(Sophie and Annie)