If you can do 20+ mph at 182lb for over an hour as an easy ride over hills then I really don’t see your concern. You’re pushing 220W+ an hour so you’re fine. Your ftp is around 275 I’d guess
What is your max hr so we can understand the hr values you’re aiming for?
Strava
What is your max hr so we can understand the hr values you’re aiming for?
Strava