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

Everyone always says "360 heads will kill your compression blah blah blah" but they fail to realize the only factory compression boosting heads for 318s were the 920 heads from 1967 and they well famous 302 heads. 360 heads all the way with a cheater cam (like the Comp 270) to build cylinder pressure and make up for the low compression.