Help with a better launch D&D big bore

[avossler]

Running 2009 D&D 901 big bore single pipe, v-force 3 reeds and fire breather air intake. Clutching in the primary is a black polaris spring 100/340 and a orange spring in secondary with 36 straight degree helix. What I'm after is to have a little better launch off the line. Do I need to change my helix or my primary spring?? What is everyone running? I run between 3000-6000 feet

 

[av8er]

09 TM901 PG/RG Turbo sno pro 153

I'm running a BDX 46/36P Helix with a shift assist, and big dog 77gram weights, I can't remember which spring, I'm in Hawaii for another week working I can look when I get home , the low end is pretty good