Do you have the factory Cam? Why not give Oregon Camshaft Grinders - Ken and ask what he can do? I have an almost identical build using EQ 62cc heads and the factory 1.6 rockers. Sent my cam out this week and he recommended Grind #1634 218/224 270/276 110LSA 106/114. I believe others here use this grind that can offer their experience. You also can't go wrong with the Truestreet build. Nice flat torque curve (see Dyno numbers). Watch your spring choice with the Lunati.