4 Improve your front-delt strength
If you’re looking to build bigger pecs, one place to check is your delts, specifically the front heads. That’s because they’re called upon during chest presses, especially incline movements. And if they’re a weak link in the chain, you can bet they’re holding back your chest gains.
That means addressing your shoulder workout. Consider doing overhead shoulder presses that are more front-delt oriented. Arnold presses and barbell presses, in which you bring the bar in front of your head, are good examples. Also, place single-joint front-delt moves first in your rotation of single-joint moves, perhaps even doubling up with another single-joint move.
This means also addressing where to position your shoulder workouts in your split. Ideally, space your chest and delt workouts at least two days apart. This should build in a recovery period so that the muscle groups are not being worked on back-to-back days. If you train them on the same day, it’s generally best to start with the larger muscle group—in this case chest.
However, if your front delts truly are a weak link, consider doing your shoulders first, at least occasionally.