I set the (15) .001" lifters on the lobes & kept (1) of the std lifters & blocked off the .062" full time feeds to the rockers & preoiled & I got 62 PSI at the external remote parallel dual filter boss and 44 PSI at the oil psi sender at the top of the 360 block. the next step will be to button it up & fire it up & rebreakin & see if the psi stays adequate. Does this sound like enough psi so far? Can I tube a block & drill mini holes for hyd lifters (if I choose to/I do have the MP tube kit). EV2Bird I will PM you.