raide or lower fuel pressuere? in the winter
 

just wondering if i should touch my fuel pressure now that the weather is getting colder. im runnin a b18c wit h160 at the wheels.. also if anyone knows i got the car tuned at t he dyno but then 2 weeks later i checked my plugs and they were pretty much shot so i replced them with ngk iridium and im left wondering now how that afffects the whole fuel pressure thing once again?? any help is appreciate!