i like your car man, very clean.

BUT your missing 2 BIG things.

1. You have no headers on a 3.4 pulley, which is bad. Stock manifolds are very restrictive and your prolly knocking alot at WOT, knocking meaning producing KR*

2. You dont have a way of monitoring that knock. I mean you dont have a aeroforce scan gauge to check what the KR is.

Unless you have some other sort of FLOW MODS, i would not be surpised if you end up with a chipped piston or even worse a blown motor because your stock manifolds cant get that extra air out that the 3.4 pulley s bringing it.

I would advise you read that guys thread to learn about this more.