I haven't smoked anything in a long time but I found this smoker at an unbelievable deal and could not pass it up. So here I am trying to get it going and I cannot for the life of me get the grill temp above 250f. I have almost 10 pounds of charcoal burning in the box, intake wide open, exhaust is closed and the stack is 80% open. White smoke exiting the stack and the max temp in the grill is 250f. Have been trying to get the temp up to 300f to get a pork shoulder in there but time is passing and I am at my wits end. I should have never given my old smoker away when I last moved. It was 20 years old and I had it dialed in.