Choosing a cam is the hardest thing to do unless you just turn it over to the "cam techs". They'll inevitably steer you to one of their shelf grinds that is a compromise on a 110 LSA. I've been reading a lot of Vizard's writings lately and he STRESSES that a 350 works best with a 108 LSA and a 383 works best with a 106 LSA. I'm also going through the same thought process with my 389 sbc. My heads flow about the same as yours and my cam(218-228 on a 112 LSA hyd. roller) leaves a lot to be desired. Good street manners but all done @ 5000. I'm probably going to have a custom cut @ 230-242 on a 108 LSA with a 108 centerline. The 108 is my version of a compromise. Everything I've seen with a 110 or wider loses a lot of torque below 3500. This, I believe, is the primary reason why everyone pushes CR increases to get some of it back. You just need to be realistic about the intended usage of the vehicle and don't get carried away with the duration. Small heads like ours need more overlap to better fill the larger displacement.