i finally got around to dynoing my car. Came out to 180rwhp and 280lbs/ft tq. and now i've got to start thinging about improvments

how about a cam? i've looked into cams with a huge output but impossible to hold an idle, and some with good power with a decent idle. i was reading up some more on it and i've gotten spooked... i read that you have to be retuned to properly run a cam? im using a MAP sensor and TBI fuel injection.. is this true? if so.. ill seriously think about switching to carb... even though that would have to be "tuned" it wouldnt be a bunch of computer work...
Thanks guys