Hard to really say, under...Everything is based on cals in vs cals out. Also, depending on the diet you're on, you can consume a GREAT amount of fat while minimizing carbs and keeping protein around 1g/lb of body weight (FYI, it's called a CKD diet). You can find more info here:
http://www.c-k-d.com
http://www.massmonsters.net/forumdisplay.php?forumid=16
http://www.massmonsters.net/showthread.php?s=&threadid=3995
You can also do a traditional 40/40/20 or 40/30/30 diet where you consume 40% of your TOTAL cals in protein, 40% in CHO and 20% in fats, a 40%-30%-30% respectively...
Split up your daily diet in 5-6 meals and you can then calculate how much of each macronutrient you can consume
Based on your stats, here is a quick breakdown of your BMR. I'm not sure how active you are so I put in a conservative number:
33 Age
178 Weight in pounds
72 Height in inches
0.4 Activity factor: .3 sedentary, .5 moderate, .75 heavy
1864.454545 Basal Metabolic rate
745.7818182 Caloric Expenditure during activity (Activity factor)
186.4454545 thermic effect of food
2423.790909 Final BMR
2923.790909 Eat this many cals/day to gain one pound per week
1923.790909 Eat this many cals/day to lose one pound per week