I pushrod oil my paired T&D's on my -1's. Ended up restricting my comp tappets. The holes were plugged with epoxy. Then the hole opposite the lifter bore orifice was drilled to .040".
Doug, Are you saying the 0.040" hole is exposed to the oil galley in the lifter bore? That is how mine are setup too.
I wonder if the stock large lifter hole on the side not exposed to the oil galley would work (no hole or plugged exposed to the oil galley).
Can you please tell me what did you use for the restrictors in those lifters and how difficult was it to fit them ?
