Everyone seems to be hung up on BHP what about the torque advantage that the bigbore bikes have.
also we have run 620ie back to back with a 750 carb monster with the same rider the 750 was 1.5 seconds a lap faster at rockingham.
As a side i bought a complete 620 motor with loom and all injection yesterday fo £550 (6000 miles)so they are out there
Butch