273 Rocker Assembly leaking?

Hey everyone,
I recently inherited this build from a family member and am slowly learning the world of pushrod engines. I am putting together this 340 with a hydraulic cam, X heads and which i believe to be a 273 or Rocker Arm Assembly. All seems to be going well but when i went to prime the motor i notice quite a bit of oil pressure bleeding from one single rocker shaft washer on each side. Just wondering if this is normal or not? If so i would assume the one that bleeds should be opposite of the supply hole?
Thanks A Bunch

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