Hi everyone - looking for some advice on how to shift my weight lifting routine. I lift 3-4 times a week on average and also do a fair amount of distance running as I enjoy running marathon running- my fastest pace recently was a 8:05 min/mile for 13.1 miles.

My max lifts within the last month have been: DL: 385 Lb Bench: 230 Lb Squat: 300 Lb

https://m.imgur.com/gallery/f4m9vg1

And my current weight is about 176.5 pounds.

I feel like I’m stagnating and need some help incorporating more core related exercises - and want to put on additional mass to stay lean around a low 180 weight range.

I average close to 2500-3000 calories a day and eat upto 3500 calories on running days.

Any advice on how to do this and shift gears a little bit would be helpful .

Diet and specific routines/exercises would be appreciated.

Thanks in advance!