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I don't have any before and after figures, but u have some dyno comparisons to other vvl's on the same dyno. Bear in mind the figures aren't comparable to your dynos, and were at very high altitude which adds a further 17% loss.
First up is a n1 ve with usual bolt ons.
![](http://s9.postimg.org/lhuvvq8n3/image.jpg)
87.5mm ve with kelford 184c and itbs
![](http://s9.postimg.org/hzivzc7r3/image.jpg)
88mm ve with the modified intake.
![](http://s9.postimg.org/baccjbmf3/image.jpg)
Tuner is a bit apprehensive to tune past these rpms and I want to go to a smaller cai. I believe the 4" cai looses hp.