most aftermarket intake manifolds don't have provisions for mounting the AC brackets. as well as coils, and some don't have choke wells, FIY.
the performer is probably the "best" aftermarket choice in terms of taking off a 2bbl and snapping on a 4bbl in terms of fit, match and ease of install.
a stock 4bbl 318 or 360 or even a 340 intake would be a fantastic choice as well. doing basically the same thing, but not looking cool and lightweight. although there'd be a bit a mismatch at the ports, it's inconsequential.