1. What is needed as far as head work/lifter modifications ect to run a cam with....
duration @ .050": 235?/238?, lobe lifts: .375"/.376", valve lifts with 1.60:1 rocker arms: .600"/.601", lobe separation angle: 116?, intake centerline: 112?
I see that thrasher offers a Spring kit that allowes up to a 595 lift hight. So what EXACTLY did they change to be able to run that high of a lift with stock heads?
So what ya'll got?