360 build in a 66 Cuda

OK I will be putting inth new valve springs (Comp 901-16) and locks, retainers etc thought while I have the rockers out perhaps I should replace them with some rollers. Is this really worth my Time/Money. Would 1.6 ratio make much difference on my set-up?

Quick and dirty summary of my set up:

Stock 75 360 bottom End
Stock 360 heads with small valves
Comp XE 262 H Cam/Lifter package
Wieand Highrise Dual Plane Intake
Holley 670 Street Avenger (Vac Secondary, Electric Choke)
904 auto tranny Will have a TF-2 kit, and I am considering a new converter (2200-2800 ) insted of the slant one I have.

Hopefully I can get everything finalized, so I can get this damn motor in soon!