318 combo's

Is this a good combo on a 318?
*Edelbrock rpm head
*Keith black kb 167 pistons
*Eagle I beam rods
*Edelbrock 2176 manifold
*Edelbrock 1405/1406 600cfm carburetor
*2.5" Exhaust system
Everything else is stock.

I now that i didn't include a cam. That's because i don't have any clue which one i should use for this combo. Can i use the original rockers on the rpm head or would it be better buy some better rockers?