Head Vent, Head Vent Options

[Highland]

Engine configuration is stock with D-Jet except 2056cc and Elgin 330-1 cam.

I bought a pair of rebuilt 2.0 stock heads (seller says rebuilt by Brothers I think in Riverside) and only one head has a vent tube.

I've read Len's article on not venting the heads. So here are my questions:

1) Should I have a machinist install a vent tube in the other head even if I don't use it
and just plug it?

2) Is anyone running a stock engine with no head vents or head vents plugged? If so, any difference in performance. Gets back to question 1, if I'm not going to use it I'd rather not drill and plug a hole.

3) If I use the heads as is, does it matter which side I put the vented head (even if it's plugged)?

4) Is there an application where only one head vent tube is used?

Thanks

[r_towle]

Did 75/75 have an ljet motor?
I thought (could be wrong) that only the 2.0 liter djet was all they sold???
I think in that instance 75-76 they were struggling with emissions so the air injection idea, along with air pumps and a few other terrible ideas landed on those later years.

I have run both with and without vents and under normal street driving I think the best way is no vent, no mess, and less oil mist in the engine bay.

Higher revving , custom built racing motors....YMMV

I remember a set of head that came back from a shop and the pressed in vent tube was loose.
Without a hose with clamp on the outside, there is nothing to ensure the tube won’t fall into the valve train...