Fast,
Yeah the ported 337 works awesome with the Chap CNC Max Wedges on the 517 as you know i really liked the ported 2D but if anything the 337 is even better. The throttle response is even quicker than before. Revs like a comp eliminator motor...I'm impressed.
I think we tried to tell you that for a long time!
I did a lot of testing with the 337 intake a few years back and was shocked at how much power it made for me. It doesn't look like it would make much power since it is fairly low profile. But for some reason it really works. The porting on yours looks really nice. I always ran it as cast, I bet a ported verson would really work well.
