Roller Rockers 1.5 vs 1.6

I currently have the Comp Cams XE268H pic of specs below, so yess .477 / .480 lift.
Pistons I forget which ones, some basic .030 pistons in a 340.
Heads are the speedmaster cnc heads pictured above.
Stock steel rockers
Quick fuel (holley) 750
Headers
2.5 exhaust
904 with shift kit
3500-3800ish tight converter
3.23 gears and sure grip

Car is together and running. Although I tend to take stuff apart every month or so to add something new lol. Goals? Meh no big goals, just like tinkering, adding new parts and having fun... oh and goofing off in the car with my partner in crime. Eventually will build the new motor and get bigger tires...

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.477 lift with a 1.5 rocker is .508 with a 1.6. ( lift divided by 1.5 X 1.6) .480 is .512 with a 1.6