318 power!

IF, and only if, you already had some 302 heads that were done and ready to rock or found some at bargain basement prices and the rest of your build was budget oriented and designed around them, then sure, i'd run them with the caveats that: 1. i'm not racing, b. i'm not expecting world beating power and III. i didn't have another option that was basically free.

there's just so many other options that are objectively better that require basically zero specialist work and have the potential to make gobs more power.
Like edelbrock heads