I'm using a 1.8 ohm coil with about 3.8 volts. I have a 60/40 pg/vg ratio currently. The amount of vapor I get with the evod is nice but i would like a thick white cloud without having to spend on those $400 mods haha
Well, I'm sure you can get that from your eVod; you may try to increase the VG a bit, but not too much--8 watts and a thick eliquid may be too difficult for for an eVod. Hey, you can try enlarging a hole if you want to--I've never tried it myself so I have no idea what the result will be. You can always plug it if it's too big.
That said, you can get more vapor if you switch to dual coils. There is a new DC eVod or you could try an Aerotank. Just remember that dual coil cartos require a bit more wattage than their single-coil cousins.
Good luck!