14-year-old calorie intake

Hello there, I am a 14-year-old who has been going to the gym for a few months. At first, I just started going to the gym for fun, but now I go for fun and also try to focus on building muscles, as well as training for getting faster at running. My goal is to try to lean bulk. My goal is to gain 10 pounds in 70 days, and not get higher body fat. I used a calculator and it said with my input, very active like I am active 5-7 hours a day, 130 pounds, 14, 5 feet, 8 inches, said that I should be consuming 2,900 calories a day. Whereas some say my BRM is 1,600 calories a day. So my question is, should I eat 2,900 calories a day + the calories I burn, or the 1,600 calories a day + what I burn, or just 2,900 calories a day? My goal is still to be fast at running, which I still do a lot, and not get fat. Thanks!

14-year-old calorie intake