I don't understand why they only sell 11 of those intakes a year. That intake really works well. It has made over 800 hp on several different motors that I've had on the dyno. I'll agree that it doesn't look like it should work that well but it does. The other cool thing about the 337 intake is that it is the only one out there that seals the valley when using stock type heads with MW ports.

Mancini should buy a bunch of those intakes and sell them as a package deal with MW ported Edelbrock heads. (or MW ported Stealth heads)