i jus put a set of these in my B18C (JDM GSR). I have full portflow valvetrain, so lift and revving capabilities arent a concern, but my concern is what should i set my VTEC X-over to? stock is around 4400, and i can feel the car bog down a little, i was thinking somewhere in the neighborhood of 5500-6000?? anyone w/ experience w/ these cams kno? thanks