I think people associate EQ with gaining weight because it severely increases appetite.. It may not be great for putting on size, but If you eat enough you'll have to gain weight.. 20lbs on EQ alone is probably a little exaggerated and make sure your diet is in check otherwise increased appetite + shitty food = fat
If you can get Test, I would definitely run that too if size is your goal.. and make sure you look in to Post Cycle Therapy and AI's before you start any cycle to see if and what will be needed