Summit has trick flow heads

Bad Sport said
Lol, me too, I have a much less expensive set of Crane Gold rollers, and I will get springs that work with them. I don't think I could sit still and grind on them.

Have you considered Beehives?

the trick flows are available with 3 different size valve springs. they can be ordered to suite pretty much any valve train.

I was just asking about the pro's and cons of either size.