NSS is a fun class and its also really up to the individual on what you want to run and how fast. I am with Doug - I don't sacrifice the look for ET - My car weighs 3800 at the line - it has a full interior including the back seat only because I like the look - I like the fact the cars have to fit the class and look nostalgic. I can run the 9.75 index but choose to dial up to the 10.0 index - that's my choice. I run two AVS II carbs - there is no advantage to them other than slowing the car with the adjustable secondary's - only reason I switched from AFB's is Edelbrock gave me a deal on the the carbs to try then out - I also run their heads. .