OIL CATCH TANK increase performance?

[cleong]

If you had a stock AFR chart you'll see that the car runs roughly stoichometric till about 4000+ rpms when it goes very rich.

[mojoyaris]

Originally Posted by cleong

If you had a stock AFR chart you'll see that the car runs roughly stoichometric till about 4000+ rpms when it goes very rich.

But compared to another engine it runs pretty lean in comparison, doesn't it?

Everyone who's had it dyno'd always say that the engine runs lean. Of course the VVTI is something else and then it turns into another animal altogether.