If you go the custom-built route, there's another site call The Jalopy Journal. Go to the HAMB message board, go to the For Sale side, and do a search for 322 Header Flanges. I got a set from the guy, and they're very, very nice.
-Brad
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Never pee on an electric fence.
1954 Special
'62 Chevy Suburban daily driver
'57 Chevy 150 2dr wagon Gasser race car
'56 Chevy 150 2dr post