Realistic expectations.. or not? 351C

So I’m spit balling on doing a rebuild in the next year or two on the 4V. I’d like to do a power tour in the next few years, so everything is getting reworked. 

I’m thinking I’d like to get 450-500 hp to the rear wheels naturally aspirated. Is that fairly realistic/reliable on these engines? Thinking some aluminum heads, cam, and bumping compression back up. Along with sniper fuel injection. ‘Might’ consider stroking it, if that’s what it takes. 

I’m just after good reliable power. Not taking it racing or anything like that. What have you guys gone with on these that works good and holds together? I don’t have any experience with the 335 series...

Frank

Doesn’t bother me to run stock heads, especially if I can save a little money doing it. Hoping I can find a good machine shop that knows what he’s doing with these older blocks...that’s probably my biggest worry on getting this project underway. It seems to be getting harder and harder to find anyone willing to do anything the right way anymore....

Frank