have a question i just put a holley 58mm tb on and wondering the hose that goes from the tb into a sensor is needed its on the passenger side of the moter and has like a red and blue plug just wondering if im putting lts and ofy deleting my emisions do i still need this hose plugged in thanks
eric

 

It sounds like you are referring to the EVAP solenoid. If you have "race" style headers, they will not have the fittings to accomodate the AIR and EGR systems, but they will have nothing to do with complete removal of the EVAP system.