How much dried passion flower should I use per 1g of DMT (dissolved in acetone)? Would it be possible to breakthrough within 1-3 large tokes using this smoking method? Does passion flower actually work as MAOI? Please share your experience.

It is extremely low in MAO inhibition when compared to Syrian rue or Caapi. You could smoke DMT mixed with passionflower or use it as an admixture in changa, as many already have, it's quite popular. Passionflower extract would be a better option for MAOI (oral), but still comparatively weak. I don't think passionflower has a very pronounced effect when smoked, but I've never tried it myself.

A gram of DMT can be added to various plant materials, either in a 1:1 ratio (strong changa) or less, it's up to you, changa is versatile, there are many quantities and 'recipes' you can try.

Also, i hope you don't mean vaporizing all that gram in 3 tokes?

PF is kinda nasty to smoke. Caapi leaf will probably treat you much better.

Orion, I'm rather experienced with DMT (tried it many times in various ways — smoking raw crystals, smoking after drinking rue/caapi extract, oral administration, had several successfull breakthroughs).

Finally, I got used to smoke DMT off tobacco in a cigarette (20-30mg per cigarette). I actually enjoy low doses of DMT (besides that I'm quite sensitive to this particular psychedelic drug) and smoking DMT off plant material is the best method of administration for me.

Now I want to make a stronger plant smoking mix with a possibility to breakthrough on it using a bong. Tobacco is not the best option for that purpose, because of unwanted side effects (especially for non-smokers), and I'm looking into PF, also because it's a weak MAOI. Unfortunately I don't have access to B.caapi leaves (which are mentioned here), only stems.

I've got several grams of DMT and a lot of dried PF, and I wonder about optimal DMT-to-PF ratio.

I can vouch for this, although I didn't smoke it as a changa blend. I used it for a kief bed...super harsh and unpleasant tasting, imo

/vomits

After all, smoking PF did not seemed nasty to me at all. At least, it was much less harsh than MJ/tobacco 1:1 ratio makes it possible to inhale ~15mg of DMT in a single toke. It was much better than smoking with tobacco; stoning effect of tobacco kills the experience.