I am trying to duplicate this build and have some questions on some stuff that I am unsure of. First what does it mean when you say that you installed the comp springs at 1.750 inches? Second after milling the heads did you have to shim the rocker shaft assembly if so how much? Third after you mill the heads did you take any material off the intake side of the heads or the intake itself or was it still a bolt on deal. Thanks Kyle.