how do you determine what icl you install your cams at? do you have a rule of thumb for duration/lift/lobesep compared to the intake centerline you would install it at? it would probably be different depending on the engine.
You go to an engine dyno and pay to figure out where the cam goes.
As an aside, if you are advancing the cam more than 4 degrees from split overlap you have the wrong cam.
In performance engines I always go in straight up. That’s where they make the most power. Not where the cam company says it goes. Split overlap or straight up.
Like I said if you need to go more than 4 ahead you have the wrong cam.