I recently did the NA cam swap on my '97 when I did the valve seals. (Hope you considered that while you had it all apart). I needed to loosen the cam pullies and move them ever so slightly to get things to line up with the belt.
What pullies are you using? NA or turbo? I used my old turbo pullies, and that puts the NA cams at +4*EX/0*IN when they are locked at the rear. I set mine to +2*EX/-2*IN for a start(based on several references) with the IPD cam tool. I don't remember what the NA pullies set the cams at by default. Initial thoughts are the +2/-2 setting are good for now. I haven't changed anything in my tune yet, but I was still tweaking it when I did the cams/seals.
I noticed A LOT of sealant oozing out from the mating surfaces. Hope you didn't use too much, and spread it evenly with a roller. There are many small oil passages that can get clogged up.
I didn't mention the valve seals. Yes. I already changed all of them, all bad. I done it without taking the head off. The special tool with a extension bar is kind of easy for me.
I also changed all the valve spring and hydraulic lifters. The new spring is conical and 3mm (44 vs 47) higher than the original cylindrical spring. The new ones are just better design.
You also need to change the spring seat due to the different shard on top. It's expensive, Volvo charge 13usd for each seat.
The hydraulic lifters also bad. You are not supposed to press down the lifter with your finger. If you can press it down, it mean the internal of the lifter is collapsed. The new lifter has better and new design.
I used the sprockets from NA cam. Doesn't matter. All same.
I'm waiting for the adjustment tool.
Ipd has instructions for the factory Cam degree.
I will definitely go for the factory setting because it's been proved to be the best choice.