I seem to remember those carbs, or something similar, on Chris-Craft runabouts with "Thunderbird Special" 292 and 312 V8's in them, two side draft Carters on a low-profile manifold, one facing forward and one aft. It was built that way so the engine cover could be a few inches shorter than it would have had to be with a downdraft carb. The 196 cubic inch Nash OHV 6 cylinder also used a side draft Carter, if memory serves me right. I've got one of them on an old Rambler engine out in the barn if I ever dig down deep enough into the pile of junk it's buried in.

BTW, I'd be using like-new Keihins, not some salvage yard piece of junk!
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!