I am running stage I at 8psi. I haven't gotten on a dyno yet so I don't know how much power I am putting down. I have the stock clutch and so far it is holding up ok. I was up near 10psi at first and I would slip the clutch at high rpm.
As far as an oil cooler goes, I am running a 34 row cooler and never see temps above 220. Even on 90+ degree days and spirtited driving. I think the stillen is a 25 row. I see you are in Texas. You might want to get the 34 row.
And put some money aside for rear tires.
