1.5 or 1.6

If you have a small block with a mild cam, in this specific example it is a 204/216 with 427/454 respectively, adv 260/272, with 1.5:1 rockers, with an increase in rocker ratio it will show 455/484 at the valve, that is like one of the smaller voodoo or xe grinds in effect, right? my question is, what will it do to the power band? right now I get power from 1200-4800/5000 but with additional lift that range will slide up a little, right? an airgap will do better on that than my performer, right? cause it seems much more punchy than a performer cam now, and the increase in ratio would only add to that I bet, while still giving lot's of vacuum and decent economy, too. I know that these 904 tappets can take the increase in rate of lift with no problem, could someone give me an idea of what I could really expect? :thumbup: thank you. I am working on another project until I can get my big block machined. gotta stay busy, you know, idle hands are wasted horsepower!