everytime i use a syringe to craft no matter which syringe i use i get feather falling evertime

Do you have RotaryCraft in your pack?

yes sir

This is related to #91 which is in turn related to rwtema/extrautilities_old_issues#525
So unfortunately we don't know what is going on but RFTools isn't the only mod that suffers from some kind of weird mod incompatibility.