Question on best cam timing for a big boost turbo Nytro

[ArcticWhite]

I've got a turbo Nytro that runs up to 28psi. I'm about to change out the head, so I measured my current cam timing.

I measured a 98.5 degree lobe center on the Intake and a 103 degree lobe center on the exhaust. Does this seem right for stock cams?

I'm being told a 110 degree intake and a 112 degree exhaust is good for a turbo application.

12.5 degrees advance on the intake and a 9 degree advance on the exhaust from where it is at now seems like a lot.

What is everyone running on their nytros?