[beatr911]

Hey, just found the cam events from the Mazda miller engine. See attachment.

So to compare:
Mazda miller. Note: supercharger must play in to the timing.
Exhaust duration - 232*
Intake duration - 252*

Suzuki GS500, 10,000 rpm max I believe
Exhaust duration - 280*
Intake duration - 276*

Ford Focus 2.3L Cosworth performance cams, up to 7200rpm
Exhaust duration - 255*
Intake duration - 255*

So in this case duration is long on the sample GS500 cams so a regrind is needed. Also phasing will need significant rework.

Still need to find cam specs on a naturally aspirated miller or "atkinson" engine without a variable valvetrain - if it even exists.