I don't know the pressures called for on that cam or on those valve springs either but I have a customer who had one of those cams in his bracket motor that I worked on. He broke a valve and bought a new set of 440 source heads instead of fixing the broken 440 Source head.
I think that I ended up setting the seat pressures between 140 to 150 lbs. and between 350 and 360 opened and had right at .080 to .100 travel to coil bind.
I shoot for .050 to .060 from coil bind on aluminum heads with roller cam valve springs, not so much on the pressure but more focus on the coil bind clearances, that has worked well on a bunch of Mopar BB wedge bracket race motors I've built I use to shoot for 225 Lbs on the seats but now I look for between 250 to 325 lbs. on the seats and from 680 lbs. opened to 840 lbs. open, depending on the cam grind, lobe design and intended shift RPM