What should i change to get into high 11's?

"His car theoretically runs low to mid 11's and the motor dyno'd 520hp 505 tq."

Since that is your goal....what kind of gearing and converter does that nova have?...it take a lot more then a motor making *** hp on dyno to run 11s...

you can beat him with a better package and less horsepower...suspension/converter/gearing and tires.