I agree with Ken, Jeanne -- cutting the tops off will weaken the clove, but the green garlic does make an excellent addition to many dishes. I'm not actually sure your cloves will go too far toward growing into bulbs, being started inside at this time of year; you may want to try using some of them as the green garlic, and let some go to see how they do.
We are in approximately the same zone and I plant my garlic outdoors in mid September to mid October; it sprouts up early in the spring and is usually ready for me to harvest by the beginning of August.
This is what my garlic looked like on May 14th last year (and spring was very late in coming!)
