Fastang,
I've never had any oiling problems and I run Mobil 1, so if there were any chance of a leak the synthetic would find it. I have not had it on the dyno yet. I just got done changing over to 17" rims and dropping the mounting of my upper control arms. I don't want to dyno it until I get my 6 speed in, should be soon. I was hoping the 17's would eat up a little more power to help with launching, but I still roast em with little effort, and it's going to be worse with the 6 speed
Don't be afraid of the "oiling" problem. From others I've talked to with CHP 347's they also have had no problems.