I work for Dallas Dodge here in Dallas, TX. We have a Speed shop here in our dealership. We took an 1984 Ram short bed. We put the Mopar Performance 5.7 Crate engine in it. From Mopar you can get that Engine 2 ways, with Carburetor, or Throttle body. They both comes with a computer and wiring. We put the Carb verson in with a 46RH trans. it has 410 gears. the best time in a 1/4 we could get it to run was 14.7 at 91mph. not too bad for a heavy truck.