Oh alright so mebbe the motor's tweaked a lil bit. But it's really nothing all that radical.
Ahem:(Flashback to 4 yrs ago) Punched .030 w/Wiseco pistons, everything internal new & balanced from the crank up, new reed kit, 140hp carburators ... But that's about the extent of any 'high performance' parts. Honest!
Things that may improve overall performance? Beefy non-resistor plug wires, irridium plugs, upgraded stator, power packs & coils.
That's all there is. I ain't sandbaggin!