Wow. At this point, we have five pages of discussion, some good info, several opinions, looks like a few feelings hurt.......all over an issue that can be cured for about $160 which would include some studs. If Trick Flow reads this, why don't you just add $80 to the cost of the heads, and furnish some studs with full thread engagement, and make the studs .100 shorter than an Edelbrock stud is from the top of the base thread to the other end. Then, they would root deeper, and the stud would work whether you cut the stands or not. Then we are down to an $80 milling job. It really ain't a big deal......