Get my car to launch better...

Launching your ET Streets with no burnout at all wont help all that much over good street tires. That's probably the biggest of the problems and the easiest to deal with.

Lots of people are using the ET Streets and getting 60' times on par with slicks. You will have to experiment a bit with the tire pressure. Somewhere between 15 and 18 usually works best for me. The consensus is that you need to get the tires hot but not a super hot burnout like a slick. A line lock makes it easy to do but its not necessary. I also have a 4 speed and ET Streets. Here is what you do; get the tires wet in the water, roll out and pop the clutch in 2nd. Go easy on the gas because the tires will spin like you are on ice. While the tires are spinning, I just touch the brake to keep the car from rolling, just as if it were an automatic. You will feel the tires grab and you will just adjust brake and gas until the tires are heated. After that you are good to go, just don't forget to go back to 1st.