360 heads on a LA 318 vs Magnum heads on a LA 318

318willrun said
If compression is equal, am I alone at liking open chamber heads ? (I shouldn't have asked... lol). I am attracted to the rocker arm shaft assembly of the LA. However, I have not had a bad experience with the magnum set up. To be honest, I think either head would be a nice improvement and work for the build.

Im not a professional engine builder by no means and im still learning as i go but one conclusion that I have reached and I may be wrong but flow trumps compression imo. I wish I had the money to prove my theory but I believe a well breathing properly tuned 8.5-9:1 engine will out run a 10.5-11:1 constipated one.