Eating so little you're really screwing around with your hormone levels, which is impeding your weight-loss. You're pretty much starving yourself, and in that situation, your body will store more of the energy (i.e. food) that you consume as fat. So, even though you're eating less, a larger percentage of that small amount you do eat is being added to your gut!
There is no way you're going to lose 30 to 40 lb in a month, man. I'm sorry, but it's just not realistic. Even if you could, you want to get rid of fat, but only a portion of the weight you'd lose would be fat - the rest would be lean body mass. At best, you can lose 1-2lb of fat per week, unless your bodyfat is particularly high, but at 6', 230 I don't think your heavy enough to lose much more than that without dropping LBM.
The Game Over diet mentioned above is solid. You'll lose fat and gain muscle and maintain a healthy hormonal balance. Other options are carb cycling, the CKD, the Ultimate diet 2.0.