We had one done by Delta, they had cores at the time, and Oregon did not. It has been a good cam. Daily use in my son's truck, a couple of years now. Hyd. Roller.
I just balanced a setup a week or so ago. The lightest in the set was 519.5 grams big end, 228 grams small end. This set was very close in weight across all eight rods. In fact, all the magnum rods I have done have been very close.
We ended up using lunati dual springs, but Matt's cam is .560 lift. Took a bit of time to find what we needed with the mag's short installed height. The springs we bought were for a Pontiac.