Day 3:
After work today I pulled the UR pulley and put the stock one back on (again). I couldn't really tell any difference with the engine just running (still felt rough) so I went for a drive. It feels a little better than it did during the day but NOT like it did before I started this whole fiasco. Now I am worried that the UR pulley screwed something up and it will never be the same. However I still fail to see how the light pulley could cause such a huge change in engine harmonics. I am sure the timing belt is dead on, I am going to re-re-check the balancer belt and shafts tomorrow and hopefully find something there. I have no idea what else it could be, except a main bearing being shot Oh well, maybe this is a sign for my to finally get that H22