[NHVANA]

Stay away from any roller lifter for street use due to excessive maintenance, stress and expense. I went through two sets, one non oiling and the next HPPO (Crower). After the second set sent ground up needle bearings through the engine I changed out to ceramic coated solid flat tapit and are happy that I did. Two times off the road was frustrating.
You need to put in perspective what you use your car for and make your decision based on what sort of useage your into.