I have to get out the smoke machine to track down a vacuum leak on my X350, and thought while I had it out I could also do a smoke test on the XJS in case any vacuum leaks have creeped up it. Where would you all recommend I hook up the smoke machine to test for vacuum leaks on the V12?

Thanks!

 

I usually just unplug the vac line going to one of the fuel pressure regulators. Right on top, easy to access, goes right into the plenum