Max HP debate

Inquiring minds want to know how good does it feel to have spent 12 minutes of your life wasted typing the truth and giving incredible advice to know that it just went in 1 ear and out the other ? LOL
I listened to his advice. I'm not opposed to finding an X block etc. That's why I made this thread. Discuss and give constructive criticism. I wanted to know if 600 hp would no biggie to the block or if it's sketchy enough that I need to upgrade. I've never been one to ignore criticism