Nick,,
John is right,.......your CR is really too low to use any long-duration cams without taking a BIG hit to your low & mid-range torque.
I'd also tell you that running a 100mm motor to 7500 RPM with stock rods isn't a good idea and especially without all the oiling modifications to the crankshaft, case and main bearings.
Keep it below 7K and you'll be fine.
