I was once right where you are now. I have a 360 in my CJ-7 and wanted lower gears but didn't want ridiculously high RPM's at 60-70 mph. Most folks around here advocate really low gears (4.56 or lower), but they tend to have 4 or 6 cylinder engines and/or do rock crawling out west. Since you spend a lot of time on the road, you need to choose a gear ratio that will give you acceptable RPM's at highway speed. I personally couldn't stand to have my V-8 screaming at 3000+ RPM just to run 60 mph down the road. You have plenty of power with a CSB 350 to go with slightly taller gears (3.73 - 4.10) and thus have lower RPM's at highway speeds, and still have decent passing power. That said, however, the ability to go slower is a big, big plus off road, and so choosing lower gears (4.56 - 4.88) will make your machine more capable off road. You can go to the Novak website
and calculate RPM's at different speeds (on road) as well as speed at different RPM's (off road) and choose the gear ratio that is the best compromise to satisfy you. In case you don't know, the T-176 first gear ratio is 3.52, and you probably have a Dana 300 which is 2.62 in low range. For accuracy, you'll want to know your actual tire diameter, not just what it says on the sidewall. BFG's are typically shorter than advertised. The cold hard truth is that it's expensive to re-gear. The trick here is to save your pennies up and do it right the first time and be done with it. Hope this helps. Good luck. Oh, and if you just wanted a gear ratio suggestion rather than all this wordiness, I say go with 4.10's. I've got 4.10's with 35" BFG's (which are really only about 33.5" tall) and love it. TrailMarker.