How would they size the cam bearings? That's new to me.
OP I saw in your add it's a magnum block and an LA cam. technically there are 2 different part numbers for cam bearings between an la and a magnum block. The magnum cam bearings are slightly thinner. They should be the same ID (from what I have read online) but I'm wondering if this could be a possible cause for your issue...
I was trying to look for this info on the cam bearing size between the PDP-25 and PDP-16 bearings. to see if that would be the issue. cause I did use LA engine cam bearings on my engine. do you know if they still have the oiling holes?