Needed some advise. I was wondering what intake cam would work better on a 2007 model zx10 (including thin head gasket) between the 2008+ race cam or the 2007 race cam. I was comparing the specs of the 2008+ cam with the stock 2007 cam and it seems like your just trading a little less duration for a little more lift. However, the 2007 race intake cam gives you about 10 degrees more duration and more lift. Does the 2007 race intake cam give you more power on a stock motor or is there additional modifications required. I found a kawasaki dealership that has a 2007 race intake cam available. What would be the approx h.p. increase with each cam? Any advise would be helpful.