mopar source stealth 440 heads

I have been doing a lot of research on this too. I think I may buy the 440 source heads. I would like to buy them ported ( 440 source gives you that option but the link has been down lately). I have seen several other members flow charts which have been pretty impressive for the price. I have heard too that the weight difference is not as much as you expect but there was enough to tell. I have also read, I believe in a magazine that with a little machine work they are suppose to be the bang for the buck if you are going for a "not too over the top build" or for a budget build.