Cam Duration Vs Lift

400 cid engine
10:1 comp ratio
280 cfm at .500" lift intake
220 cfm at .500" lift exaust
1 7/8" headers
single plane intake
750dp holley
symetrical lobes

i made the cfm and c/r to work very well with either cam profile haha.

cam is solid if that matters. its on an engine dyno. been alot talk about these new high lift/short duration cams.
I think its all snake oil... so just looking for opinions.