Fingers crossed.
I have at least one good complete manifold already restored with a new 'flapper' and bi-metal spring, and hopefully, the one visible on the GPW engine will be as good as it looks from a quick external 'once over'. The 'flapper' moves freely, which is a good start. I'll test the bi-metal spring, but will probably replace it anyway - I have several in the spares box.
Mike
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