Anything that acts as a CNS stimulant should be avoided with MAOIs at all cost.
In all honesty I don't think you need, nor want, more stimulation then what LSD and MDMA will produce when combined together. Both substances are very stimulating.
If you really want more though, you could always up the dosage slightly of either one or the other. I have also known people to take amphetamines such as adderall while on LSD to make it more stimulating, however this has always been accompanied by a decrease in psychedelic effects from the LSD. The visuals and thought patterns get slowed down and are not as meaningful.
Whatever you decide to do, just proceed with caution. Mixing drugs can produce significantly different responses in different individuals. Always start low with new combinations, and make sure you have a sitter in case it reacts negatively for you.
Everything published by Gone-and-Back are the mad rantings and ravings of a mind who yearns to be free and thinks he knows what he is talking about. However, these are just delusions made to feel that freedom, because that freedom will never come. Any experiments done are purely figments of the imagination, and are falsified to the highest degree. Nothing should be taken seriously from a crazy mans mind.