sirio 2653 on picco
has anyone tried a sirio pipe on a picco .12 engine? i remember reading
that sirio pipe looks like a 2617 pipe, so my question is would this pipe give some more top power to a picco engine than the old 2607?
Serpent 720 09 mega zx 12 dsII+, Serpent 733 nova 353 tuned/sirio XXXV
Futaba, Graupner, Hudy, RB fuel