While the 460 cubic inch big block in the Ford is a powerful engine, it's hampered by:
* Older technology: The 460 is a carbureted engine (likely) with significantly less efficient fuel delivery and combustion compared to the Hemi's modern fuel injection.
* Heavier vehicle: 70s trucks were generally heavier and less aerodynamic than modern trucks. This added weight significantly impacts acceleration.
* Transmission and drivetrain: The older Ford's transmission and drivetrain will likely be less efficient than the Dodge's.
The 2006 Dodge Hemi, with its modern engine management, fuel injection, and lighter (relatively speaking) design, will have vastly superior horsepower, torque, and overall acceleration. The difference would be quite noticeable in a head-to-head race.
