Which Oil Vent Hose
Which Oil Vent Hose
Neither nipple should be obstructed. You need proper "crankcase ventilation".
Plumb the upper nipple on the oil filler through the purge/PCV valve to a vacuum port on the intake.
Connect the lower nipple on the middle iron to a line running to the catch can. If you have as standalone, just stick a filter on the catch can and be done with it. Stock ECU, you'll need to run the vent line for the catch can to after the AFM on the TID/intake tube.
Connect the lower nipple on the middle iron to a line running to the catch can. If you have as standalone, just stick a filter on the catch can and be done with it. Stock ECU, you'll need to run the vent line for the catch can to after the AFM on the TID/intake tube.
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