That deal can be very deceiving, that 400 would be a total dog except it had the high stall converter and 4.30 gears to make up for the complete lack of bottom end power. In my opinion neither of those things should be considered street friendly. Put a more street friendly 2000 stall 3.23 gear in it and as proven by the low compression 440 example running low 14s it would not be near that quick. That is where the modern cams have a huge advantage, they can make a low compression motor build enough cylinder pressure and still flow enough air past the valve to make it street friendly AND fast.