The 'Quickest' A-Body Small Blocks

The 'Quickest' A-Body Small Block from the Factory.

1968 Barracuda 'Notchback' ~ 340 Formula-S ~ 4-Speed ~ 3.91 Gears ~ E70 x 14" Tires

Performance......... 13.89 @ 101.17 MPH


Where does that number come from?