I'm not back pedaling 5.2 magnum stock freshen will support 400hp. Just the facts
Magnum heads will support 400hp out of the box. The 5.2 magnum already has higher compression than the la 318. If mopar performance can get 400hp out of stock magnum heads and a stock bottom end then its already been proven to work. So 5.2 magnum has factory heads that with a spring change can and will support 400hp. So just because you don't like it doesn't make it untrue. You have been presented with facts. And your return replies are always baseless flop jawing about how you do things. And you still haven't provided any facts or numbers that prove me wrong.
Break down the hp numbers, machine work you deem necessary. Prove to me that a 5.2 magnum with just a cam, headers, valve springs and intake can't make the power I stated. Prove it show me the numbers or you are the one blowing hot air