This killer chest workout based on the 8×8 approach is fantastic! The short rest periods will tax your cardiovascular system much in the way high … Chest Decline Bench Press 8 x 8. Decline DB Flyes 8 x 8. Supercharge your workouts to build a bigger, more powerful chest. All chest parts are targeted – inner chest, upper chest and lower chest. If you want to know what the best chest workouts are for building a bigger, stronger chest – this is the one to try!