Hey guys need some help on this one ,I have an E camm with 1.72 roller rockers whitch make valve lift .535/.535 anyone have any part #'s for a good set of valve springs able to go 6500 rpm with no float,Iknow it kinda seems like a dumb ? but comp springs require some mach work to be done to make them work due to binding and I just broke a set of cranes on the # 5 cylinder I never thought I would be asking this kind of ? but Im running into road blocks trying to find these locally Ican get spings that will work from crane but I m a firm believer if something fail you once it will again. Thanks Again