Anything to corroborate that? I've never heard of the pedals having a different ratio.
Pretty sure the z-bar has different ratios between a v8 and a slant, and I think the fork is a different length. Or maybe the z-bar ratio is the same, but they don't interchange due to tube length and only the fork is different. Not sure.
Either way, never heard of the pedals being different beyond the bushings and spring brace.