We do not have a specific resource on this, unfortunately, because your optimal pacing is effected by a multiple factors that can be tough to nail down.
For example, a super fit individual might expect to complete a 40K TT in under an hour.
A less fit individual may expect a time closer to 1:30.
These racers would pace differently because their durations on the bike are different, to the %FTP will also need to adjust.
As an example, below is an Ironman pacing table that helps to determine your optimal pacing based on your expected pace.
One great resource that is designed to take the guesswork out of pacing is BestBikeSplit. You can enter your specific course and personal details, and it will help you to determine a fully customized training strategy . That would be my recommendation for a perfectly paced target race.