I'm going premix.

I know I can cap the big vacuum nipple on the upper manifold that goes to the oil spider, but theres one I dont know about and no one has addressed it.

The nipple directly above that big one (I just spoke of) on the upper manifold (theres 3 small 1 big in a row vertically) and it connects underneath the manifolds directly inbetween the lower oil injectors on the housings.

Can I cap this, does it only supply fresh air to the oil injectors?
I've heard that it is for the fuel injector bleeds, if thats the case I don't want to cap it.

Please someone who went premix help.

Ed

 

The only line that you cap is the one that goes to the oil injector spider.
EDIT: Search under my name and pre-mix write-up. You will find more info than you can handle.

 

Yeah I read that thread.
I was just wondering about the one inbetween the oil injectors no one really mentioned that.
Well I guess I'll hook it up then.

 

Yes thats the fuel injector air bleeds. Leave it connected.