That's your issue right there then.
My suggestion is to do this dirty, because you won't stomach the clean foods.
NOTE: not that these foods are Dirty per se, but basically as calorically dense as possible.
Do you think you can chase every meal with a table spoon of Natural peanut butter? Assuming 4-5 meals a day, thats an extra 4-500 calories.
Try this for breakfast:
4 slices of bacon
double glass of Milk (500ml) + Scoop of whey.
So tally that up we have approx:
Eggs - 420 cals
Bacon - 200 cals
Cheese - 200 cals
Milk + Whey - 150+150 = 300
So we just stuffed 1120 calories down your throat with food volume that would fit into a medium sized bowl and one large glass for liquid. You surly can do this?
I would have said have some oats or pancakes as well but we're going to stomach volume here. The carbs could be to much for you, so I'd suggest drinking them with your workout (Dextrose, Waxy or the sort).
And eat Pizza, burgers.
At your height dude shoot for 4000 cals with 300g protein.
One friend of my is 6'8" and was "athletic" at 225. He broke his leg in an accident and got to 280. He dieted to 190 or so with sick abz and decided he looked like a cancer patient.
He ate 5000 cals/day to START bulking and hit the weights hard. Now he's 290 carrying more lean mass than 99% of the people. Eat up.