I couldn't even read all the comments so someone may have said this, but don't inject Maraijuana. it has bacteria that live in it which are fine and harmless in your mouth or hands or whatever, but that might make you violently ill or worse is you put it in your circulatory system.
As for the responses to the OP, some of the more technical ones: Do you think a guy asking if you can INJECT fucking MARIJUANA INTO HIS goddamn VEIN will have the equipment, not to mention the intelligence, can follow your instructions.
Sorry OP, no offense. Lord knows that I've done some dumbass experimenting with dangerous drugs.(maria isn't dangerous!) I've been to the point many times where I say to myself "Gee, this MIGHT not kill me."
Actually someone alluded to one of those times when I kinda was iffy over whether some of those "experiments" was gonna kill me. Injecting Vodka!. Which works very well, just like you'd expect it to be.
I'm sure your a nice guy, but I must say that I have never purposly flamed someone in a message board until I saw the title to your post.
I dunno, maybe in this case Mariajuana IS a "gateway drug" (ha ha, haven't heard that phrase in a while). So you wanna get high again, right? Try an opiate pain killer or Soma. Maybe you can find something in your parents medicine cabinet (if you live at home) that looks promising and look it up on either
http://www.pharmer.org/ or WebMD.com.