Header thickness

[Geegc@aol.com]

The exhaust header I just bought from one of our vendors is slightly thinner 
than the intake manifold.  I am wondering if I should grind down the washers 
to create even pressure, or if its not necessary?

Also, any recommendation for manifold gasket sealant?  I have some copper hi 
temp spray stuff I was going to use.

Gary C
Red one close to being completed.
Black one God knows how long

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