ICBM gambit next moves

If you're playing the gambit, then your knight is on f3, not f6. Perhaps that's what you meant. This is also known as the Tennison gambit. Typically, the line goes like this:
You can just check out some games in this site's game explorer, or there are a lot of videos on this opening online. Levy Rozman's is pretty good:
https://www.youtube.com/watch?v=yc91zIltxIo