well we just measure our reeds in inches of water, but yes humidity is bad for GHpipes, its not girgling that you hear its really bad out of tune notes. but I am stuck on the axle now the drums dont want to come off the axles and that means I cant get the tappered axles out so I think Im gonna have to do some surgery and Cut the Housing ends off to get the Axles out, and since im narrowing the housing any ways I will just buy new housing ends. but what would be a good Axle ratio to use fopr a 67 Barracuda with the 361 bored to 372ci and a 727TF for good off the line but have somewhat good highwayspeeds at good rpms