time to fire big block.

If that cam is very big it won't have much vacuum and a Carter needs vacuum to keep the metering rod pistons pulled down. It will be rich, or what you want on a breakin.

The Cam bearing is normal. There are 3 oil holes in #4 bearing. The bearing holes don't all line up,with the block holes so it's a compromise installing #4. Get a mirror and look at the upper part of that one, the other 2 oil holes are perpendicular to the deck surface.