Another dumb question----

As above, ... it has 4 degrees advance ground in. The 112 LSA minus the 108 ICL = 4 degrees tells you that. The behavior of the engine is very responsive to cam timing changes so it is worthwhile IMO to get it right.

But, without degreeing, you won't know if it really installs there with a 0 degree sprocket setting. Our cam with 5 degrees of ground in cam advance degreed-in at about 3 degrees advanced with a 3 angle sprocket like yours set at 0, so we installed a Mr Gasket 2 degree offset crank key to get it to 5.