crownaviation
http://www.tudyno.com/
What's crazy is that we opened up the ports on the manifold over all the other stuff out there. I wish I trusted another O-ring like a trust the stock ones. It would be easy to widen the footprint on that gasket and run a custom O-ring. But if the wrong size O-ring is used, the wrong material, etc there will be huge problems. It would be real hard to test for.
Iirc the newer 09-10 intake manifold gaskets are much larger than the earlier individual gaskets. They are one piece per side vs 4 individual gaskets per side.
I don't think it will be worth any changes tho. The intake ports on my heads are as big as any company will make them.



