Timing advance guru input needed

toolmanmike said

Just for clarification, what's your build? Cam, transmission, gears, tire size?

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It's a custom solid roller, .242 intake, .249 exhaust at .050", .278in, .286 adv., .594 in/ex lift, 112LSA. Tremec TKO-500, 3.91 gear, 26" tall tire.