thx guys.
I'm actually using 4 gauge everywhere. Should I be using 0 gauge to connect 2 batteries, and also to go from battery to the distr.block, then 4 gauge after? or can I get away with using 4 gauge from battery to dist. block, then 4 gauge to each amp? and again, 4 gauge wire would be 200a fuse x2 between batteries? sorry for all the questions, I just want to make sure I'm getting the proper fuse ratings, but I'm pretty good with connecting the rest.
as for the cap, it's small (only 3 farads) but i think I'm going to keep it AND buy a second battery, and put it after the 2nd battery. Although it may not do much, it still gives me a clear voltage reading. Unless anyone reeeally disagrees with this? (I have the cap why not use it, as long as it's not doing any damage to the system)
you guys are great help!