blocking off mani pcv

anybody had success with blocking off the pcv port on the manifold? i was gonna use a nipple but thought id ask around before i had a massive boost leak.

I just stick a bolt in the stock rubber hose, with a clamp. Its still a leak liability, I would probably get a new length of 3/8th hose, few inches long. If you are looking to vent the valve cover through the PCV port, a 1/4 BSP to 3/8th hose barb will work, or an extra brake booster nipple from an extra manifold, if you have one laying around, works well.