Rod ratios are a tricky thing. Everything has to work together as a package. Changing one thing in a set up can make a big difference. Kyle is correct in his statements. I want to add one thing.
Two motors side by side, both identical let's say both of them are 2276 with the same heads, cam and compression. One has stock length rods and one has 5.7 rods. Both motors will make the same power (close) but the shorter rod engine will make it lower in the rpm range. The longer will make it higher in the range and will rev higher. Both will run differently because of the different air speed through the heads. This is a direct result of the piston speed being different and the time the piston spends at TDC.
Air speed will be different in both so they will both need different camshafts to run great (or the same). It depends on what you want the motor to do, you can't have it all. You have to sacrifice on some things to gain on others. You can design a motor to run the way you want for the most part. Talk to experienced engine builders and you can learn a lot. You will also get conflicting opinions.
6.0 carillo rods all the way.