So GENERAL dosage when smoked:
50 mg Spice + 30 mg Harmalas would be a very strong experience
When eaten (actually there is not so much data, so maybe this may vary a lot between people):
400 mg Spice + 200 mg Harmalas would be a very strong experience
That means you would have to eat VERY much to get an effect. But then the effect would be just as doing Pharmahuasca.
Sakkadelic says the MAOI strength is not enough. Maybe he means if you would eat the same amount like you would smoke, then the effect is too less. But actually even if the effect WOULD be high enough, the DMT effect itself would be nearly zero.
Therefore actually I would not say it is too weak, you simply need to eat more of BOTH to get an effect and yes - then you can have a real effect. But you would have to eat at least 100 mg DMT + 100 mg Harmalas to have a noticably worthy effect.
Now you say that you wont go buy herbs.
But you say it is Changa. So you have already DMT + Harmalas + Herbs?
Changa means you have the both important things (Harmalas for fortification, DMT for effect) already
ON TOP OF herbs. So if you dont have herbs in this picture, then you dont have changa. Sadly I cannot really see what this is.
So let's say you really have Changa, then it could be a mixture with 40 - 50 % DMT, 20-30 % Harmalas and 30-40 % Herbs.
Then you could simply smoke it, as Changa is designed to be smoked. But if you want to drink it, you could put 300 mg in a tea and then drink it or simply eat the 300 mg.
Other scenario:
It is NO herbs, but DMT + Harmalas, it may be something like a 50/50 mixture. Then you could eat 200 mg or drink it in a tea.
But I guess you would have to acidify it, otherwise nothing will dissolve into the tea. Put some lemon acid into the tea or - which would be gross - acetic acid. Then make it a little hot and wait for ~ 10 minutes.
Eating would be safer to get the effects then ...
But still I am not sure if it really works well as you ingest the Harmalas and the DMT at ONCE and not Harmalas beforehand. This would be a safer way to get effects, but people here also report that eating both together also works.