I have reused my valley gasket, (Comp style) a few times on assembly and disassembly of my old 3.5 block.
Should I get a new one for my 4.0.
The old has probably been off and on about 4 times and a total of 7K miles on it.
Oh, and it has been sitting on my bench fr a couple of years
Yea Don I am not familiar with that gasket, but just the fact your asking means you are not trusting it so I would replace it.