your thoughts

Stock 1970 swinger 340-stick cars were 14.4 second cars with 3.55s, and street tires.At least mine was. A race suspension back there with slicks and optimum gears could get you into the 13s easy enough; tire technology has come a long way from polyglass. Those engine were rated at 275, and NHRA-factored around 290. My car was 3330 with me in it. The p/w comes to 290/3330=.0871
With race suspensions;
The Dc manual says .085 is a 12.8car and .089 is a 12.6 car. So,I'ma guessing the .087 is around a 12.7 car. the manual also says that 3330/290=11.48 w/p now, should be around 104mph..
My car went 98 and change, in IIRC G-stock class.That was 1971. and the car was one of the quickest, not fastest, Darts around my neighborhood.
I think my engine musta bin a dog. But if it was so were the Hemi-Cudas which posted similar times, with a bit better mph.
Remember, these numbers were for SuperStock type suspensions. Street cars will need to add a bunch of time.


Bottom line is; people(ad companys) lie, time-slips don't.