318 4bbl intake? yes and no.

The factory put 360 heads and 360 4bbl intakes on 318's, so I guess technically it's a 360 4bbl intake but that's mostly hair splitting. I've put the 360 4ll intake on a normal 2bbl 318 and while some will talk about intake revision due to port size mismatch it's never been anything other than an improvement on a street car.

As for no 2bbl 260's, that's not true at all.