Seems like 1.477 the right ratio.
Assume that the thread on the adjuster is 32tpi (.03125 per revolution) / 6 (sides on a nut) = .005 thou per nut flat.
Since the rocker increasing the lift ratio you would multiply .005 * 1.477 = .007 per flat
Snug the adjuster to remove all lash, then back the adjuster out one or two flats depending on the intake or exhaust.
Sound right??