The red will most likely be to stiff.They are rated for rpm the red is for full race setup,1000 to 1500,should get you there,not sure what the blue is rated at.You will have to try a couple different roller weights to get it just right.Probably have to go up a jet or 2 for best performance.keep an eye on the plug color,don't want to run to lean.Should get to 50+Good luck