Deciding on replacement intake (318, details in post)

1st what are you trying to get out of the 318, power and rpm wise ?
A 318 just gonna need more rpm and gearing than a similarly built 360
Eg. 400 hp is around 5400 rpms for a 360 and 6000 rpms for a 318.
400 hp at 6000 for a 318 would make me very happy.