340 Oil Priming Question First Start

Summary:
1. Couldn’t get flow at rocker arms during manual priming of the oil pump.
2. 60 psi was held continuously through slow crank rotation.
3. #2 and #4 rocker bolts removed and confirmed high volume flow on each side.
4. Passenger rocker shaft was reversed.

Update:
1. With the crank centered for high volume flow on the driver side (shaft not reversed) assembly torqued down and 60psi applied…no flow out most of the rockers but a small dribble out two or three.

Note: The driver side rocker shaft orientation notch is very faint and not prominent like on the reversed passenger side.

Tomorrow I plan to reverse the passenger rocker and reorient it correctly and see if I get flow that side.

Any other inputs are appreciated!

Thanks!!