700cc wheels and 27" wheel frame

2 questions

1. will the bb be too low and woudl I really notice it when cycling fixed gear?
   
2. do I need >57mm drop brakes?
   
   

Thanks
Ed

2 answers

1. hard to tell since we don't know what frame it is, but probably not
   
2. hard to tell since we don't know what frame it is, but quite possibly
   
   

You're welcome.
Kalle