I tested a bit last night and what a difference it made. Although I didn't really give the car a good run and test with the original chassis, but Im not thinking that I will go back to it for the time being.
Tight track with slicks and additive I ended up with:
10k 100k(with some 80wt oil to bring it down a little) 10K
3x1.3 45tlr AE purple
3x1.4 35tlr AE white
I found a 1.8 ARB and bent it to fit, after tips from David Ronnefalk. I will see if I can get hold of a 2.0 at some point.
I tried rear outside hole on arm but found the rear didn't hold through the whole corner, it would wash out easier on power.
Went back to the inside and it felt better, that might be because of the springs selection but more testing to come.
AVID chassis rules