Unsure which new Carb to pick

Those stupid stamped-metal intake-to-exhaust gaskets do a lousy job at best. It is very much worth your while to get the good gaskets for the manifolds-to-head, intake-to-exhaust, and exhaust-to-pipe junctions. Hardware: read this and this.
Thanks ^^ Still, 3 small leaks is better than the one it had when I bought it...

old manifold.jpg