Hello all, I need your help in identifying a S&S intake manifold I got in a box of parts. It has S&S 342X stamped into the side of it, and a number 8 stamped on the edge of the flange. Opening in the bolt hole flange is 2 1/16 inches in diameter. Also has a small brass vacuum nipple sticking out the edge of the bolted flange. I saw a picture of an exactly identical S&S intake that had 366X stamped on it and it was the same in appearance as the one I am trying to identify. Need to know what type of carb and what motors it fits.......Thanks in advance as I know there are plenty of master wrenches that will know of the top of their head what this is.