As we got older, those old muscle cars sure do get faster!!! In 1967 I was the 17 year old "hired gun" for Schoon Motors, A B-Stock Firebird with 400 and a 4 speed, 3.90 gears....I could run right on the National index for the class, 14.01..... Arnie ran the B Super Stock Version of my car, again it would go right on index, 12.20's----in a very well built and prepped Super Stock car!