Need some help, oiling issue 318 la block with magnum heads

Hello everyone, im new to the mopar world on my second build and have run into an issue with the oiling on my 318. i have a 91 block with some new cast magnum heads and a comp cam valvetrain. the issue is that only some of the rocker arms are getting oil (magnum style arms not shaft la). all of the rockers on the driver side oil fine but on the passenger side rockers 1,3,6, are not oiling but the rest are. i have rebuilt this engine and everything is new. i have also swapped out the lifters twice and same problem. has anybody seen this before? ive cleaned the oil galley all the way to the filter and found nothing.