The average price for a gallon of gas when the Detroit Lions last appeared in an NFC title game was $1.19. Just under $3 a gallon in Michigan, our boys in Honolulu Blue could have used some premium high octane against San Francisco before they ran out of steam after blowing a 17-point lead at the half last Sunday. The Lions came in as underdogs, but they sure didn’t play like it in the first half. Stagnant and stunned, the 49ers were behind 24-7 after two quarters. But like that old saying about the month of March, Detroit came in like lions and went out like lambs. From roaring beasts to gentle giants.…