[Jake (The Snake)]

I like the turn raise. Anybody with a 3, 4, 5, 6, or 7 has 4 or 5 outs against Hero. Given preflop these holdings are not unlikely at all.

If there were some guarantee BB is ahead, than calling would probably be better, but he could certainly be betting a draw.

Lastly, even if you get called in multiple spots AND BB has a better ace your equity still probably holds its own.