I am replacing my stock intake manifold and Nikki carb with a loop-over sidedraft manifold and dellorto carb. The manifold does does not have any port for vaccuum that I can use for the oil lines from the oil pump. Any ideas what I can retrofit on the manifold?

 

pre-mix with a side draft, anything else gets too complicated. I have been pre-mixing the REPU with a 48mm Weber side draft since I put it on the road 6 years ago, running the OMP would have taken too much effort to figure out and I was in a hurry.