changing cams like that will need a tire and gearing change to accomidate each.....
ive found that sacrificing some of the mid range torque and gearing it to load up the motor in 2nd gear launches produces a stronger and much more consistent launch, but in turn causes shift points and rpm to be more critical......but its all good, i have the rpm range to work with, my current setup optimal shift rpm is 8500 rpm.... 
SETUP/TIRES AND GEARING are much more important the a few HP
If you plan on winning I suggest you get the maximum HP available, then find the tire/gearing combo to match. Not the other way around.
That is what we are looking for...... maximum
average HP across the RPM drop of each gear. Since there is about a 2500 RPM drop between gears, we want the maximum average power across that whole 2500 RPM. If one cam makes 2 or 3 more HP up top, but the overall average is lower, the cam with less power on top, but better average will be faster. It will not feel as fast because of the more linear power without a sudden burst at the end. Most of us have experienced this with factory turbo 4 cyl cars that feel like rockets, but end up not being fast at all when it comes to the track. The RJ on a stock bore/stroke is pulling to 8,600 without dropping off with a +3 TB and FCI. With a 50mm(sleeved 54) and FCI it will go well past the factory rev limit. A 48 or 49mm TB will probably be the strongest overall performer on this setup
