That picture Gilberto posted IS the raised port. All it is is, the regular port & they take .250" out of the roof. They are not thrilled about selling them to general public, as they have intake manifold fitment issues.

Even the original posters, dealer could not get him a set of RP's, so they won't even sell them to certain dealers apparently. Russ knows I like them & can make them work, so he still runs the program for me when I ask for it.

I've dynoed couple motors with them on, the extra CSA definitely moves the powerband up. The one basic 416, made peak TQ like 5700 or something silly.