Dough in at 120 for 20 mins Mash at 150 for 90 mins Mash out up to 168 Sparge at 171
Based on boiling 7.50 gallonsliters at 1.051 for 120 minutes, this will decrease your wort by 2.00 gallonsliters, bringing your after boil OG to 1.065. You wanted an OG of 1.070. It looks like it will be under.