dlampe, the Crane rollers are #35542, the same as for the 385 series engines. If you want to use the
oil from the lifter galley, I think you will have to unplug them or just rely on
oil from splash. In my case (428) I had to restrict the
oil since I lost some oil pressure when I switched to the roller cam due to a lot of oil going to the roller bearings. When I was running flat tappets hardly any oil got past the lifters. (I checked this with the intake off running the oil pump). I put .05 or so size restrictors in both lifter passages. I also checked with a drill motor running the oil pump with the intake off and there was a lot of oil still getting to the rollers and I got just about all the oil pressure back.
Forgot to add that I was considering Crower lifters with the HIPPO option but changed my mind. A lot of people seem to be happy with the Severe Duty lifters but I'm not sure about their standard roller lifters. A moderator on the Mustangs and More website with a record holding Mustang superstocker said he tried roller lifters from most of the different manufacturers and really liked the Crane Pro Series the best so I thought I would give them a try and have been happy with them so far. JMHO