Stock ford 400 has no chance!

The way the stock ford 400 is made it has no chance. I never used the stock heads on the block after the clearance was corrected but I know the heads can't be the culpert because Closed chamber heads had the same problem! I have talked to many builders and they all say large squish clearance can cause serious problems from over heating the rings and ringlands to interfering with Proper chamber filling. I am sure the 400 would be a kick ass engine if it were "O" decked using stock heads! I don't know if fords idea was in serch of clean air but it made for a sad combination