Optimum setup for 302 heads

I recently installed 302s on my 318, port matched to Performer intake and mild runner and bowl work. I'm running stock pistons though. Being you're running zero deck 167s and 10:1, I wonder if magnum heads might serve you better and offer more performance though. You could probably take advantage of larger runners and the 1.6 rocker advantage over the 302s 1.5 opening.