Aluminum Intakes dont seal on X heads

I have to agree with fomulaS, If you milled the heads and block, you need to mill the intake. Now why the stocker fits and seals and the rest don't is beyond me. Maybe it was milled before. I did the same thing as far as milling the heads. I am running a set of j-heads that are milled quite a bit and there is no way in hell the intake would have sealed properly before milling it. My bolt holes wouldn't even line up. I thought about opening the holes but, I listened to everyone here and did what they said. Needless to say, my intake fits perfectly and sealed up first time it was installed. Has been running with no issues(at least the intake) for almost 6 months.