Azeem, No, never tested with those parameters. Simply because it never came up. 6500+ rpm Iron block motors are not that common, much less so now with the advent of the TA block. I do have one in the shop now, owned by a local guy named Kurt.. it made 700 HP with a nearly stock TA SP-2 on it, I may use that motor to test the intake that is being welded up right now, for Mike Erickson's Tomahawk. That motor does have the equalization line, we could test that one also. With the bigger race motor clearances in that motor, it may have more of an influence on oil pressure. No worries about hurting it, we will always monitor the pressure on the rear, and if it went below 60psi I would abort the pull.