Anyone ever install just a Skunk2 Tuner Stage1 IN cam? I was wondering how much of a difference one would see if just the IN cam was installed and keeping the stock GSR or ITR EX cam. Would it be possible to tune the stock ex cam with cam gears to make more power or would the stock ex cam hold back the engine for the the S2 IN cam to make any real power. I've heard of people upgrading their gsr's and b16's with just an ITR or CTR IN cam and leaving the ex cam stock.