Hello,
Just to ad to the discussion I like to report the following;
Last year I dynoed 65.14 Bhp/65.16 Nm torque. With original carbs (145 main/45 low), TBS pipes and a modified airbox. Today I have done a new dyno run with my new CR2 + Freak = 66.43 Bhp and 67.03 Nm torque.
Conclusion 1 - it is possible for a 790 engine to reach between 65 and 70 BHP with free flow pipes and any matching carb.
Conclusion 2 - A god modified airbox can match the Freek.
To go further I suppose you need porting the head, bigger valves, and/or a big bore kit.
Or a turbo.
Regards
Hasse
