Match Race 1972 ~ 'Duster 340 vs 'GTO 400'

Weight difference

'Duster 340'.......................... #3165 lbs. {Shipping Weight}

'GTO 400' Hardtop................. #3450 lbs. {Shipping Weight}

Both were available with 3.55 Gears.

Mopar 4-Speed {A-833 Late Series}.......... 2.44 / 1.77 / 1.34 / 1.00
Pontiac 4-Speed {'M-22' Close-Ratio}....... 2.20 / 1.64 / 1.28 / 1.00

This is not 'even' close.

In 1973, the NHRA re-rated the 340/240 HP to 270 HP = Classed in H/Stock = {11.50 to 11.99 Wt/Hp}
In 1973, the NHRA re-rated the 400/250 HP to 273 HP = Classed in J/Stock = {12.50 to 12.99 Wt/Hp}