I have installed new FP, FPR, injectors and sec. rail. What should I do with the 3rd line from the tank (the charcoal filter line)? Can I just cap it and eliminate the charcoal filter and oneway valve? Right now I just have the stock supply and return lines connected. I am running datalogit and PFC.

 

Yes plug it up to keep the bugs from sleeping in there . Remove the little black plastic can under the throttle body, and the purge valve .