Under the sheetmetal, however, is where the $3,440 Formulas credentials lay. Standard engine was the 400 cid V8 which generated 330 horsepower, 4800rpm and 430 lbs.-ft. torque, 3000rpm. Car & Driver tested a Formula 400 with this engine and automatic transmission and recorded a 0-60 acceleration time of 6.4 seconds and quarter mile performance of 14.7 seconds at 98.9mph. If you want to own a truly collectible classic vehicle these days, you need to have the right combination of variables that set your vehicle apart from the crowd.