Crazy as it sounds, I'm about to fire my car!!! lol
Engine was built by Barton moons ago, and it has T&D rockers.
We primed the engine last weekend, it had oil SPEWING past the oil tube at #4 cam journal area both sides, where the yellow arrow in the pic shows. It sprays pretty good. I contacted Barton, he said the older rocker setups did that, they fixed it by installing a 0.10 thick o ring under the washer each side and retorquing.
I'm wondering if anyone here is familiar with this, has anybody used an o ring to fix it, and if a copper/aluminum washer might be a better idea???

Leaks from under the bolt in the pic each side, sprays forward and backward!