Hi Conductor . . . Gearhead was right about patience . . . there's an Edmund's on ebay today:
Edmunds Two Duece To bad some meat-head drilled a hole in it!
I've seen these 'refined-log' style Edmund's before - but for Buick straight-8 and Ford Inline sixes. This is first I've seen of this style for Chevy standard.
I am more familiar with the larger dual plenum design that was pictured in Almquist catalogs for years:
Trouble with this manifold is that it's going to require some trimming of the driver's side firewall upright to get it into my ride.
Happy hunting.
stock49