thats pretty good for just a 132cc runner. i went ape on mine. prolly around a 190-200cc port. mabey around 260cfm intake 170cfm exhaust. that was very involved though. right down to almost totally eliminating the pushrod pinch and installing brass sleeves. some expoxy to clean it up. on the exaust it was hogged out big time, except for the floor ended up almost a duplicate of a W2 port. and polished to almost like a mirror. Big valves. 2.05 intakes/ 1.625 exhaust. lotta time invested. wouldn't recommend it at all. especially when you can get rpms and such. i did it becouse RyanJ (shadey dell) said I was a fool to think it could be done becouse he couldn't.
