I have a comp Cam 224/228 .581 .588 114lsa. Only about 2k on it. PRC dual springs with titanium retainers and brand new seals Thuder racing 7.40 pushrods... this is a complete drop in setup ! 625.00 to your door !! I also have a turbosmart 2 stage boost controler Very easy to use and install .. has a hige low setting at the flip of a switch 125.00