You are going from about 60 inches to 87 inches. That's a huge jump in gear.
I still can't get on top of a 46/16 in the track, which is about 81 inches, so for the street I would definitely be lower than a 46/16.
If you feel the need to gear up, try a 42/15, that gives you about a 75 inch gear, which is a pretty good all around gear. You can go fairly fast and still get up hills with it.
Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1