exhaust manifold problems/log manifolds

[Gary]

I have 454 big block chevy with Indmar exhaust, these are the log type manifolds. Can these manifolds go bad? I have had water in 2 cylinders after detonation problem. Also, is there a way to check to see if they are bad?

[psdperformance]

Gary,in my professional opinion :idea: You will need to check the muffler bearings for reversion in the fibulator housing next to the diaphram housing to make sure they are not bad :D :D Just kidding i saw your post and nobody answered so i thougt i would be a smart ass. call me in the morning and i will come over and help with whatever i can.
Talk to you later, Chris

[Keithb87]

Gary,in my professional opinion :idea: You will need to check the muffler bearings for reversion in the fibulator housing next to the diaphram housing to make sure they are not bad :D :D Just kidding i saw your post and nobody answered so i thougt i would be a smart ass. call me in the morning and i will come over and help with whatever i can.
Talk to you later, Chris
That's funny...... :D :D
How are the flappers on the exhaust tips?