Indy/rhs heads?

Are those the LAx or the MAx? the LA version is a great deal and will work with your std valve train. I looked them over pretty well at Carlisle. Nice peices IMO. There was some issue with the spring heights lately but I dont think that is impossible to overcome. I would be more concerned witht he sring pressures than lift BTW. There are modern grinds that are under .480 lift that mandate dual springs.