[Mike Taylor 3601]

To gain more clearance between retainer and rocker,are you planning on using a -.050 lock which reduces installed height and then removing spring seat or machining it to gain the .050 back in installed height?
If i was doing it and had the room to set spring installed height .050 less I would just put the -.050 lock on it and run more pressure.
If don't have the room,if head will locate spring take spring locators/seats out and use .015 shim.
Mike Taylor 3601