Help me choose the proper BTR spring kit.
Im confused about the differences on Btr's dual springs kit. First question is..for my 228r cam is it better to go with a 650 or 660 spring kit for better valve control/longevity. And then for the for each type of 650/660 spring kit has either a steel or titanium retianers.Whats the pros/cons to each.People always say you get what you pay for..I just want to know for the extra $50..what exactly is that assuring me as an end result other than shiny metal thats hidden behind a valve cover.





