I remember the 1968 or 1969 318 had an intake which, at the time, resembled the popular Edelbrock Tarantula intake, but was a factory 2bbl on a 318. Looked neat! That was before we really knew anything about single plane or dual plane.
I looked in eBay for a 360 2bbl intake (which has the larger capacity Holley 2210 2bbl) and carb and intake used was $150.00 for the pair. Another search for 318 2bbl came up with something similar, but for the Carter BBD 2bbl (with smaller throttle plates). Both intakes were for later model engines, but were dual planes and from about 1972-78 model years.
1980 was the ONLY year Chrysler used a 318-size Carter BBD 2bbl on a 360. Everything prior used the larger throttle bore Holley 2210-family 2bbls.
Enjoy!
CBODY67