If you have someone to use T5suite or have it yourself, you can check to see what it thinks your timing is vs what the flywheel says it is. My concern is that with a "Turbo" crank pulley, unless you get an OE SAAB one, which I are NLA, there is no guarantee that pulley mount holes are manufactured the in the same way.

I will be tuning with Mike D once he returns from SOC out West, but was just curious for my own sanity in the meantime just how far off it could be.