Please note that github issues are not a support channel. If you need help with Faye then I suggest you try StackOverflow.
If you're having trouble running faye-rails on Heroku you're most likely running into per-dyno connection limitations, etc. Look at MessageRocket as a possible alternative.
If there is an actual bug with faye-rails (and not Faye itself) then feel free to raise an issue.
Cheers.
James.