If I can ask what is your max power RPM and cruise RPM. Did you need to change the port timing at all? I had a 670 on an MXZ and was thinking max HP was up around 7800 RPM.
What gear box ratio are you running?
If I can ask what is your max power RPM and cruise RPM. Did you need to change the port timing at all? I had a 670 on an MXZ and was thinking max HP was up around 7800 RPM.
What gear box ratio are you running?