i have a 1st gen b16a and i noticed the plugs arent brownish they still look new, im running stock timing all i have is intake headers , and gsr cam , i have a fpr and its set at 40 psi , my o2 sensors the # 1 o2 is by the collector and the #2 o2 sensor ison top on pipe 1 and 4 could that be the problem , or can anybody sugest fuel pressure? or anything else?

 

How do u know ur running lean?
As long as there's no premature detonation (knocking), then ur alright. With N/A, u get more performance running about 1 - 5% leaner thne stock fuel settings.

 

If the plugs are white you know you are running lean. I think you are fine.