I developped a bolt-on / easy to remove +1.5hp kit for stock moto that are fitted with 01 cylinder and mandated 99 ignition. It consists of vforce reed cage, base gasket change and programmable ignition. Added bottom and and over rev, as well as more reliable and easier jetting.
Add 1 more hp with cylinder head modification.
Requires zero porting and all parts can be changed back to stock moto regs in 30 minutes.
it worked well at our club where all shifters are run together at the same weight: stock moto, mod moto, ICC, KZ, Tag Shifter.
I would add a vforce reed cage immediately. Its the best value for added power.