cant smoke the skins...problem??

My opinion, for what it's worth, is that the majority of your combination (including the converter-rear ratio) is good and by rights you should be able to stomp it and put down 5-10 feet of rubber. Headers would be nice for high RPM and acceleration but are not the problem for launch. The one component that concerns me is your choice of carb size and the use of a vacuum secondary with both the street avenger and 3310. I suggest you see if you can get your hands on a Holley or Demon 650 double pumper and give that puppy the gas off the line that it sounds like it wants. Like the guys say, make sure your ignition timing is correct and advancing properly and check all the little things that can add up. Hell I don't even have a problem with the cam you're running and if the fuel delivery system were the problem you'd see it more at high RPM. Good Luck but don't ya just love mysteries. :burnout: