intake/exhaust mounting, what am I missing?

townsend said

Question for Rusty:
The exhaust manifolds from the mid 70's and latter used thicker triangle washers and slightly longer studs.
Would you want to use some of the thin and thick triangle washers on the same manifold?

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"I" would not. I don't think it would hurt a thing, but I'm particular about stuff like that. I would want to use a matching set. But for no reason other than it being a personal choice. WIth only 10-15 LBFT, I think the thinner set would work just fine.