302 Head Question...

I believe that even the Edelbrock Performers went to 360 sized ports awhile back. They used to be 318 sized ports, but not anymore.

Edelbrock Streetmasters (also out of production), also have small ports. Single plane intake with small runners for higher velocity and 318 ports.

The 302's were strictly 318 heads. Closed chamber, 318 ports, and 318 sized valves.