Inputs on a home built 318 for red light to red light fun

rumblefish360 said
A 318 doesn’t come stock with such large open chambered heads. They must be 360 heads. Use Edelbrock heads and a KB domed piston and a .050 head gasket to get close. I got 10.69-1.
PLYMOUTH KB KB399-STD Keith Black KB Performance Pistons | Summit Racing

I relooked up the heads you are correct the are quoted to be 60-67.5 cc and I didn't want to go away from cast iron heads because I want to stay with the 60s home built style