Assuming you have 2% DMT content in your source material, work out how much that is for the amount of material used. Then allow 1 mole of HCl for each mole of DMT. For this to work you need to know the molar concentration of your HCl, then with the right arithmetic you'll know what volume of HCl to add.
Adding base is essentially the reverse, with the calculations based on molar quantities of NaOH, or whatever other base you use and will vary depending on the stoichiometry of the exact reaction concerned.
So, have a pop at the sums and I'll be happy to check your workings before you proceed with anything practical.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli