| Steveo had my old one tested, 48, which was as it showed on the Parkit dyno at Cadwell
from all the stuff I've read and listened to, the big thing is air/fuel/exhaust areas and can make huge difference. Then the cam timing makes a difference, as does how tight the squish is
had all that sorted on my 620, started with 60, so lets see what it makes come tuning Thursday |