A lb of muscle burns an extra 45-50 calories, but beyond a certain point, it gets harder to gain lean muscle, because you'll create more caloric excesses, that's why guys over 180lbs in weight, will struggle to be solid and ripped without hormones or Steroids.
Also protein shakes after workouts are fine, but water is better. Milk thickens them up, increases Casein content, calories and Enzyme production as the body will produce Lactase to break down the Galactose part of the Lactose Di-saccharide.
All of which may slow down the absorption.
If Water makes it taste a bit meh, then try experimenting with things like Cinnamon, Vanilla Essence, ground Nutmeg, ground Ginger and Honey to see if that improves things for you.
Also bulking with more calories may help, but it's also about how you train and how you eat. More calories isn't an automatic pathway to gains, it's about more of the right things. Protein and Carbs will help, but if you eat too much of the stuff, you'll have more than is required and a lot of the calories will convert to Fat; the excess decreasing the stronger you get and the more calories you therefore require.
Try this instead.
If you're eating 6 meals a day, increase by 300 calories a day 50 per meal.
Method 1.
Add 5g Protein, 5g Carbs, 1g Fat, (49 calories), per meal.
Method 2.
Add 5g Carbs, 3-4g Fat, (47-56 calories approx), per meal.
Do one of these things, then wait a few weeks or months until nothing else happens, then do one of them again.
Aim for 1.2g Protein per lb, or 1.5 max and if you think you're there using the 1st method once or twice, then switch to the 2nd option with Carbs and Fats in it. If you think your good for Protein now, start with option 2 and continue to increase calories like that, as and when needed.
You'll be around 3,700 - 4,000 a day, in around 12-18 months approx.
Just remember, a big guy eats like that because he has to. A smaller guy doesn't have to, so work up to it, as it's easier to keep some Fat off, without affecting muscle mass when bulking, than it is to get it off and maintain muscle mass when bulked.
Oh and don't become a stress head about the caloric increases. Ballpark increases will do, not precise ones. If you start counting grains of rice with tweezers, seek help immediately
