Ron, With a higher ratio, you will gain in Ramp acceleration opening slightly, and the duration it stays open mostly, also the overal peak lift will be extended as well. So it changes the whole opening and closeing ramp's from the begining to the end. and everything in between, to be exact.
the changes in the very begining and the end of the stroke are so slight that a stock truck can normally run one -two ratio's over stock with out any iterfearence issu's.
When you talk area under the curve, that's been gained, it shows much more flow ability, than just calculating lift, Duration is the biggest power consern for any engine, especially a boosted engine, thats where the power is, lift helps some, but not like one would think. But with higher ratio rockers you will get both.
The Flow#'s you posted dont really make much sence, and sound really low. like maybe it was a basic port job, and in that case you got what you asked for. The valve Will only flow what the port will allow it to, thats what the valve is for to essencially meter the air flow correctly, The valve should be the restriction, not the head. These heads can flow as high as the low 300's
CFM if done properly. Stock they flow between 100-150CFM.
If that is infact the case, Adding a higher ratio will only help some, because of port air stall, or port restriction. Duration will help, but not like your expecting.
