Cloned from Ctorx who said to not forget trub loss of 0.65 gallon. Recipe change to Marris Otter and 1# Cara 45.
Based on boiling 5.50 gallonsliters at 1.059 for 60 minutes, this will decrease your wort by 1.80 gallonsliters, bringing your after boil OG to 1.078. You wanted an OG of 1.067. It looks like it will be over.