What type of Acacia are you using? (ie, does it contain MAOI/ROI as well as DMT?)
Else, you'll need to brew with caapi or Syrian Rue etc (you probably already know this). I can personally vouch for this recipe. Shredded bark would be fine, just boil for longer!
Ayahuasca using Syrian Rue & Acacia confusaThroughout recorded time and long before, trees have stood as sentinels, wise yet silent, patiently accumulating their rings while the storms of history have raged around them --The living wisdom of trees, Fred Hageneder