Replacing heads

Well I'm super disappointed I found a crack in one of my fully ported 452 heads, I wanted to have an iron headed hammer but I'm not going to spend a bunch of money on another set of iron heads, for now I have a set of 516s that are bowl blended and cleaned up I'm going to use just to get this thing going.

I'm starting to save for a set of aluminum heads and I'm looking for some advice, I don't want to go with an rpm or a stealth head that would limit me on a future build,"not saying they are bad heads by any means", but I was thinking more along the line of victor heads, they are very good ootb and have huge potential after port work, more so than the new trick flow heads. All advice and opinions are welcome!