the 3.3 hasn't been hard to tune for me but the picco is unbelievable maybe even too much power.
heres specs for picco:
CLAIMED HP: 2.5 (remember "claimed")
RPM: 32,000
CARB TYPE: SLIDE
CRANK: SG or SG TMAXX
CONSTRUCTION: ABC
ENGINE SIZE: .26 ci(4.27 cc)
PORTS: 5