I always liked Larry Scott’s pectorals. They were not bulbous like so many guys today. I know he trained at your gym at the time he won the Olympia.
How did he exercise his chest muscles?
Larry alternated the neck press (supine body, hands over elbows, lowering barbell to neck) with chest parallel bar dips (hands 32” apart, chin on chest, feet forward of body).
These two exercises gave Larry his famous slab-like pecs by putting all the stress on the upper and outer areas.