Honestly, I don't feel anything different than the regular amphetamine I made. I have a feeling that maybe it's because its a racemic mixture. I just got some D-(-)-Tartaric acid, and I will give the optical resolution a shot to see if the D-4-FA isomer actually gives some euphoria.
Also, I thought maybe it was just me that didn't feel any euphoria from it, so I sent it over to a friend who is more experienced in amphetamines, and he said he didn't feel any either.
Im not sure what, if anything, I did wrong, because I do get the regular amphetamine response from it.
P.S. Allt he reagents I used to make the 4F-P2NP were ACS grade, and I recrystallized the 4F-P2NP a number of times. So I doubt it was that.