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

This is more about which head will perform the best. Lets say if the compression is 10:to1 with both heads, which head will perform the best at, lets say .500 lift. I also have the ability to home port both heads, but I will NOT be installing larger valves as I believe either 1.88 or 1.92 will be more than ample supply for the 318