1.6 Rocker Arm Performance Gains over 1.5 Rocker Arms

I think increasing the rocker ratio it will add power. No idea how much. Unless you are controlling all the variables at the track and the car is consistent within a few hundreadths, you might not know for sure if or how much it helped. Only you can decide if it is worth it.

I encourage trying stuff irrespective of popular belief. That’s how you learn. You just need to have balanced expectations.

I do find it interesting that most Mopar enthusiasts so embrace the fast rate cams, but not higher rocker ratios. The increase in max lift is not a meaningful part of the increased rocker ratios but the increase duration the valves sees at each lift point. Again, I cannot make any claim as to the improvement or its value.
Myself it's not that I would not increase rocker arm ratio or consider it as a good performance upgrade it's just that with most factory type heads push rod clearance through the head is already approaching a issue with a true 1.5. so I'm taking that in consideration when considering the ganes that will be made with a 1.6.jmo. within a factory/Edelbrock/la style head I like to keep my lift under or around .550 and work on my low and middle lift flow numbers.