Lunati Cam - Advance ground in ?

Let me see if I can clear it up for you. Every single aftermarket camshaft made that the cam card reads for example, LSA=112 Intake center line (ICL)=108 HAS advance ground in. In the example I gave, that camshaft has 4 degrees advance ground in.

That means in a perfect world, if you install it dot to dot, it WILL be ICL 108 degree, or 4 degrees advanced from the 112 LSA.

Since it's nowhere near a perfect world, they very, very rarely work out installed dot to dot, so you need to degree them.

The only situation where a camshaft would have no advance ground in is if the card reads the same figure for the LSA and the ICL, which is unusual, but does exist, especially if someone is custom grinding something for a given application. There are also cams that are ground retarded, but it's pretty uncommon.