The ideal angle for the incline bench press varies depending on the muscle group you want to target. Here are the recommended angles from the search results:

• Upper chest: Research shows that the correct angle of the incline bench press to target the upper chest is 30 degrees from flat.
• Upper chest and delts: A bench angle of 45 degrees will activate both the upper chest and the delts.
• Delts: A bench angle of 80 degrees will mainly target the delts.

Its important to note that the ideal angle may vary depending on your body type and personal preference. Some people recommend playing around with a few different angles to figure out what works best for you.