Hi. I have removed the standard air box for a k&n but now I'm left with a pipe going to the back of the carb, what's the best thing to do bloke it of like I have done in the picture.

 

if it originally went to the airfilter then i would leave it open so it can breath to atmosphere

 

on some of these there was a hole for a spigot to vent the fumes inside the filter but as said let it vent to atmosphere

 

Cheers give it ago.

 

late reply. had the car going the other day and I tryed leaving the pipe of to vent to the atmosphere but it wouldnt settle at idle would always rev up on its own so then I blocked it off while the engine was running and runs sweet. looking in the air box were the pipe went on b4 there is like a valve flap. see how it runs on a good run.