Well sir, the obvious answer is run an A/B. I'm willing to bet that you don't understand what I just penned. In the absence of that knowledge, do this: Grind up your sack in a coffee grinder. Disolve the shit in 95%+ Iso (Red bottle of heat...WallyWorld automotive dept). The most common gear "enhancement" is MSM, which is immiscible in ISO. NOW, allow the solution to evaporate overnight while you kick yourself in the ass for not just doin' the shit in the first place. BUT, thats nothin' like the ass kickin' your gonna give yourself when you get back 1/3 of your dope.
THe best advise is this: Enjoy it for what it is and assume that until you find something better that it's uncut. Finally, go to the vitamin section of wallyworld & buy some MSM caspsules (the shit's really good for you so you might as well use the shit). Add some of the MSM to your dope & smoke it. If that didn't change the flavor, it's already been "enhanced". Oh and this is really the last thing: If you paid $50g for it, it's been fucked with.