Will 302 heads work with an Air-Gap?

It's been bugging me since I bought this manifold. Here is the exact one I bought from Summit:

http://www.summitracing.com/parts/edl-75763/overview/make/dodge

The applications lists 318s from 1967-1991. Perfect since I have a 1974 block and 1989 heads but there's clearly quite a few more holes in the head than there are in the mainfold:





I took a look on the edelbrock site and they only list 340 and 360.

http://www.edelbrock.com/automotive/mc/manifolds/chrysler/rpm-air-gap-sb.shtml

But I've read multiple posts from people talking about using an Air-Gap on a 318 with their 302 heads. Someone please help me out here and give a definitive answer. Will this combo work?