I just noticed that the metal pipe that connects to the rear of the Idle Speed Regulator is very loose on the end I can't see. Where does this end go? How do I check it? The pipe that connects to the cold start valve is also a little loose under the manifold. What is the easiest way to tighten this? Pehaps this is why 6530 doesn't idle well? Thanks again, Dave & 6530 [Non-text portions of this message have been removed]