The line under the upper intake is blocked off and the line connected to the canister that's suppose to connect to the intake is just open but it doesn't suck or blow any air.
Well I got two codes from it and on was an O2 sensor (fixed) and one for egr (code 33). I've noticed if I keep it up over 3,000 rpm it runs smooth and has full power with no backfire. When it is running crappy if I rev it slowly it backfires out the intake then when I stab the throttle it cuts out, a little intake backfire and when I let off the gas after stabbing the throttle it backfires out the exhaust. I just don't understand why it does it only if I drive it around 25 mins or so and shut it off and try to start it.