Hi had a few problems with my v2 impreza. basically my standard recirt valve started to leak as someone broke the pipe for the vac line so after a lot of ear ache find the right bov that'll fit my v2 inlet I got a baileys blow off valve after fitting which wasn't easy due to little space it's now on BUT it doesn't boost at all and ticks over lumpy. I've checked for possible leaks and im sure there aren't any. Anyone got any suggestions? Was running perfect till the standard recirt valve broke! and i cant find one anywhere! 

Are you sure all of the pipes are leak free?Soapy water then spray lightly over pipes will show any leaks..

As said above mate need to check all the joins/connections have you put another dump valve on since ? 

I can try soapy water but im sure it's leak free. This is the first after market bov I've put on it only put it on today and soon realised something wasn't right. 

Give it a try,and let us know the outcome and double check the baileys you've put on

Did you put the bung in the intake pipe that should come with the dumpvalve ?

yeah bungs in 

Maybe try removing the dump valve and blanking the hole and vacuum pipe to see if it idles better / holds light boost .

Don't boost to hard or drive about to much with it blanked off , it's just to check the valve itself isn't leaking

As it sounds like a vacuum or boost leak to me

I was going to say something similar but putting the standard Dump Valve back on :) then try that.