1.6 rockers with this combo?

The valve lift and rocker ratio are limited (I believe) by the flow of the intake/exhaust runners.
On the iron j heads I wanna say the experts here said lift after .45?? Was a waste on stock heads.

I don’t know what the limit is edelbrock heads.
You have given engine specs, but
Everyone here needs to know:
Vehicle:

Weight
Transmission (stall converter)
Expected driving usage/purpose
(Circle track, drag strip, street or combination there of)
Type of tires (slicks, etc.), size
Differential gear ratio

There are brilliant people here, but they need as much info as possible to really help you out.

Many reference the B3 rocker geometry setup.
I don’t think that you need 1.6 rockers, but obviously if you have them and they work alright, run them. It is possible that much lift might create slower/lazy air flow at some point-experts would have to confirm that guess. Best wishes!