Need 318 help/advice

It is not a big block.
Good thing it is not a gopher.
Again, those heads will flow fine for a 318 street motor.
I ran those heads on a 318 truck and would spin a pair of 295 50 15 tires with ease.
Did I not read about a 400 hp build with those heads on a 318,I think,yes.
For you to be pushing so hard your advice it's sad you don't even know what I'm talking about. Way back when I would call you a brain dead cumfart and taunt you until you cried to a mod.. but I'm past that now. You don't know, but when you're ready... you'll get it. Best of luck in your learning curve. I'm being sincere. I don't want you to believe fallacy.