School me on NHRA drag racing classes...
I suggest that you attend a Drag Race at Bandimere, where the NHRA classes are running..
Stock elminator requires an engine that came in the vehicle for that year.....318 or 340...a 360 would not be legal for 70-71 Duster...plus stock elminator has set preformance levels...and elmination is bracket racing unless you run a car in your own class...then it is heads up...
A competitive Stock Elminator car is not cheap....LOL
Super Street...is a 10.90 class at sea level...dont know the correction for Bandimere..probably high 11s....It is bascially heads up bracket racing as you still can break out....
You best bet is to learn how to race ...yes Bracket race...learn how to get the most of what you have...Attent the races and ask questions.