Julian. Just adding information, hopefully useful. Not intending to contradict. There are two Hall Weber manifolds. One is for the standard 4v iron C heads the other is for the Raised port aluminum heads. The later is what I am using with my A3 heads.
The first one, the one intended for the iron heads will not work with the raised port heads because of the mismatch on the floor of the ports. No guys, I don't have pictures. Sorry.
I never thought to document any of this stuff.
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