318 magazine hp

Has anyone here built a nice hp 318 engine. You always read magazines that claim big numbers on the 318 I am just wondering if anyone has came close to these numbers with a teen. Don't get me wrong, I am a fan of the 318 I am just wondering if anyone has actually built one that has the hp these magazines claim to build without a large sum of money. I read alot of these forums from the past an someone asks the question, how do i get more hp out of my 318, and there are always several posts that give sites and magazines with 318 build ups done by differant magazines that built a 400 horse 318 without a bunch of machine work or exspensive parts. I was just wondering if anyone has done one of these builds. And if they did, did they come close to the magazine hp, or are they happy with what they got when they where done.