I need more heat from my burner on my perfict flame smoker. I have been told all i gota do is drill out the orface 1-2 sizes and I'll get more heat. has any 1 done this befor? If so I'd like your advice on this, also any other sugestions are welcome and valued. Burner is currently a 15k BTU, and I cant get temps up enough in this cold weather, is reasion for this mod. PLEASE HELP as I have to smoke turkeys for Christmass, or wifes gona kill me....lol