[Formulajones]

Originally Posted by rohrt

All right this is interesting. Just for a sanity check I changed the gearset to the Advanced setting (A) on the crank sprocket and ran the numbers again.
Dialed in at 106.5.

So to recap the three settings on the crank sprocket get me (R)111.5, (0)102 and (A)106.5 when trying to dial in @ 109.

Thats just far enough off the mark to upset a person.

What's the LSA of the cam?

What is the intake lobe lift vs exhaust lobe lift at TDC overlap stroke?

What brand camshaft is it?

If this is something like a 112 LSA cam (I suspect) I'd be inclined to leave it at 106.5 and run it. It will have a better intake/exhaust ratio at TDC overlap and eventually lose a degree or two over time anyway.