360 head porting for big power (500HP ?)

I like what your doing I haven't had the urge to work that hard on factory iron in 20 yrs but I think you have way more head than needed for only 500hp. Good luck.
Thanks pal. I started these things about 3 years ago. They were originaly intended for my 10 second street/strip pump gas 360 engine build http://www.forabodiesonly.com/mopar/showthread.php?t=216720, but then I wound up putting a set of IndyBrocks on that. Every time I started in on the task it seemed endless :banghead:, so it got drug out then shelved. Fast forward to last year about this time I built my spare parts 360 http://www.forabodiesonly.com/mopar/showthread.php?t=198914. Ultimately made 442HP with that thing. Then the wheels started turning. Knowing that the heads and cam were the major limiting factors on that motor, I dusted off the 308s and got back at it.