i had a frst bailey breather on my frst but always had a bad idle with it something iv now heard of a few cars suffering with,i was recomended to run a erst bailey an block the vac pipes in the inlet manifold that run to the breather after doing this the idle is now spot on but now on idle im getting a light blueish smoke on idle an it done it twice when slowing down in traffic it didn't smoke befor hand but i can understand why changing the breather would couse this i thought it would just work in the same way as an erst setup .is the vac an important part of the frst running/setup??
has any1 got some help/advice

thanks in advance
chris