Ok. so i just installed my 2.4 manifold. While doing so i noticed that the intake ports had been a little sludgy (im assuming from the n20 usage). So taking of your intake manifold to get that cleaned out wouldn't hurt. Post your situation if you try this.

 

spraying wet i assume? fuel puddling in the intake tract seems to be a common issue with wet systems

 

yeah. could possibly be why some people are having issues with the wet systems.