lifter galley crossover tube

I got ya now YR. misunderstanding. To me, 12 o'clock means straight up, as the engine is installed in the vehicle, looking aft - forward. What you're referring to, in my mind, is tapping the main caps at 6 o'clock.

Very cool mod. Thank you for sharing. The unfiltered oil part is sketchy tho. I couldn't imagine revving that high on unfiltered oil on a nice, balanced crankshaft. Using a large bulkhead fitting and plumbing the manifold out the oil pan would be a simple procedure.

You're right about a lot of these other mods too, the pickup tube, as mentioned is a major restriction and if left in stock form, will probably cavitate the pump. Pulling oil uphill is a tough job.