i have a 96 GSR head and i have LS head with ferra springs and retainers in it,...also bought ferra valves *new*,...but was told by motorheads that the springs wont work but the retainers will,...was wondering if anyone else had a second opinion on this b4 i sell the head and go lookin for new retainers and springs,...people tell me they will and then again they won't,..so however many people say witch is what im goin with,..thanks EVERYONE