It was a very nose heavy b motor A body/727...no sway bar, worn shocks, the weight on the back helped the 60'...ran this car in street trim with McCreary Dirt Track tires...20+ years ago.
I've added rear ballast (and net weight) to several cars and ET'd quicker...what's to get?? The Duster was 3380+ pounds so...13 pounds is well less than one half of one percent of the total weight.
I'll stand on my every hundredth (.01) of ET drop is typically worth several hundredths on the big end, and a tenth (.10) 60' drop is typically worth more than .15 in the quarter for most cars of reasonable power to wt ratios
Those Wallace Racing Calculators are pretty useful (at least reasonably accurate) for estimating potential ET variables
