Any gains adding 1.6 rockers to stock 273?

BPTracing said
Everyone keeps mentioning simple things. The Car already has an aftermarket electronic distributor. I have not had the chance to check timing curve rpm. Exhaust is stock manifolds, but aftermarket dual exhaust and Flowmaster mufflers (which I hate due to too much interior noise).

well, yeah. you didn't tell us what your set up was to start with. how are we to know that you're not trying to put roller rockers on a 2bbl manifold with 4bbl adapter and a janky *** holley economaster, that's got a soft hole and slap *** wore out stock points ignition.