We are talking a little horsepower this week as Nook is joined by Mike Messick and Robert Brandt from Roush Yates Engines. Mike manages all things Roush Yates trackside each week, while Robert is the Engine Tuner on the No. 4 car of Kevin Harvick. The trio talk about the differences in the Cup packages this year, tapered spaces versus restrictor plates, the EFI digital dash, and much more!