M.B.H.D.,
The useful torque band range of the engine in rpm for your referencing engine would be very helpful in this discussion. Of course camshaft, head porting, valve sizing, intake and exhaust configurations are important.
I agree,all are important areas to consider when building a engine & selecting good gearing for a particular application.
Every combo is different also no two engines will be exactly the same.
MBHD
