I guess thay made some intake manifolds for us regular hot rodders, I am sure the intake dated me quite a bit. there is one on ebay, bids are at $132.
its a low rise as was mine. mine just dumped fuel....did not run good until 4k + rpm....hehe.
guess it was parted out, dont know, last I saw it was about 1975.
it was a "bailing wire special"... that pre-dates using duct tape, you see.