Mini thunder airdam placement help?!?

[tunnelvission]

I'm upgrading my Aquacraft Mini Thunder and was wanting to put an airdam under it. I'm not sure as far as placement and was hoping someone could help me out, I can get a picture of the underside if nessisary.

Thanks
Daniel

[martin]

Airdams normally go the width of the tunnel, on larger boats their about 2" in from the front.