150 HP LA 318 - vs - 230 HP Magnum 318

Roller LA 318 vs 5.2L Magnum short blocks are basically the same, LA 318 heads are good for about 325hp where Magnums can do 425hp with reasonable cam and CR but fully ported they are about the same. And with this cracked head thing isn't a little over blown if most Magnums are cracked but still run fine does it really matter? plus I hear 302 heads have same problem.