How NOT to build an economical or powerful 'teen

What makes the 302s crap? It was my understanding that smaller intake side increased the airflow speed, and you got better torque as a result. Just the thing I'd want on the street. Is it because they are iron instead of aluminum?

Do these 302s make me look fat? :banghead:

I thought the 302's might be a good idea because of the small combustion chamber. Flat tops and a closed chamber has got to be better than a flat top and open chamber especially if the piston is down from tdc. Am I close? I know the valves aren't huge and the ports small but it's a teen with a small cam. Just my take.