Johnnyboy: I'm gonna follow this thread pretty close because I can relate to your dilemma. This happened at the Kahuna race last year.. track was dialed during qualifying but by the mains, I was on ice.
I don't run a lot of 2wh but I do run mod truck a lot. when the track loosens up I usually do 1 of three things.. or 2, or all three if I'm really out to lunch.
I'll move my front spindles down, putting both washers to the top. This is the most aggressive of the changes I make and this seems to help a lot on a lot of tracks. It helps the weight shift to the rear quicker. I'll also lighten up the rear springs by one rate. And then there's the wheelbase. Try shortening your rear wheelbase.
btw, I sent you an email earlier regarding an upcoming race.
TLR Racing - ARCS Speedway - B-Fast Racing - Dialed RC - G-Force