Mark,
the Cleveland's oil sender passage is tapped into the rear of the right hand lifter galley in the same location where oil feed to bearing #5 is also tapped into that galley. This is not the lowest pressure in the system, or the furthest passage from the oil pump, the left hand lifter galley is the furthest passage to be fed oil, and there is a way to tap into it, it just isn't obvious to everybody.
I have no knowledge of what was done to prep the block of the twin turbo motor. This was not the young mans first Cleveland project, I'm certain the oil system is modified to some degree. An additional oil feed like this would be a good application for a high volume oil pump.
your friend on the DTBB, George
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