MonkeyManZ28

i have searched for instructions to install a cyloes true double roller timing set for a 97 z28 with a hot cam. everywhere i have looked there has been alot of different instructions saying different things. whtas the right way to do this, i have to keep the crank postion sensor for emmisions? do i even need a double roller set up or can i just get by with a new stock setup because of the fact that i have a electri water pump?