Correct, but two of my own observations;
1. Most normal pcv valves don’t seal for **** under positive pressure so it still pressurizes the crankcase somewhat.
2. The breather that normally flows into the crankcase is now trying to evacuate
My answer was to the pcv only, as the hoses would blow off with any great pressure. As to pcv leak, I use pcvs for fuel tank vent joker valve in case of rollover, the ones I use hold fuel back without leaking.
And yes, put in lotsa vents for excess crankcase pressure, I didn't mean to touch on that as you had it covered, as do others, lol.
