I questioned why I needed dual springs for that cam. Seems like they would beat the seats up into the head after a while. I have a 4 speed with 3.23 gear but might change the gear to 3.55 or so being that I like to launch from stop signs etc. I will have to talk to my machinist about that. I am running a racer brown ssh-44 in my other motor and love that cam. I know it wouldn't work the brakes tho, hence the lunati. This is the reason that I posted the thread and all the info is really appreciated. Thanks for your reply!