Been talking with comp Cam and found out that the springs were supplied with the wrong retainers for my application so I've ordered their recommended retainers and locks. I also asked there tech group what Cam they would recommend their response was Cam kit k12-423-8 502/510 lift, 224/230 duration @ .050 on a 110 lsa. I would really like some comments on this Cam from you guys that understand this stuff better than me. I will be running 4.10 greats.