Gear Ratio and RPM deciding on gears

Yeah people talk a good game but then get all skeered to do what something "really needs".
Kinda surprised and not sure how to take some of the comments here. I have a set of 3.55's ready to go but am leaning to buy a set of 4.11's because I feel the cam and intake is set up for a higher RPM peak and with the 2.71 its rather flat. Was thinking that the 4.11's would help with that. I posted the curves to try and figure out if 4.11's might be too much in the only way I knew how and that was cruise RPM. I plan to take some data on RPM VS speed and do an AF mix per RPM/speed later. Then plan to do a leak down and compression test. I really dont want to yank the cam just to see what I have.......