A.J. Foyt Racing has signed Michael Armbrester as its newest race engineer.Armbrester, formerly of Rahal Letterman Lanigan Racing, replaces Foyt veteran Danielle Cucchiaroni, who was race engineer on the No. 14 Chevy piloted last season by Santino Ferrucci.Cucchiaroni left Foyt for RLL after the season finale at Laguna Seca, and...