i generally use Isky 9385 springs set up at 2.00" with CV products Ti retainers and Comp 10deg locks.
this is 240lbs on the seat, and 600lbs at 1.300.

ive sold several sets of EZ heads with that spring/retainer combo....works well for a typical low maintenance mid-.600 lift bracket roller for motors turning 7300-ish or less(depending on cam profile).

if i were looking for more power, yet keep things pretty reliable, i'd run a Comp 951 spring at 1.950, with a 1.6 rocker and a cam in the low-700's for lift.
i'd just use HS rockers, since they fit these heads pretty well, seem to hold up okay, and are readily available.

at 14:1CR, depending on the overall car/chassis combo......i'd be looking for something around 280 @ .050.