need loose middle off help

[racedad17]

help with loose middle off, car gets in good but when picking up throttle for middle off it tails out insted of lauching foward like it should. any ideas? track was somewhat slick.
450 rf 400lf
5reb/5.5com 6.5reb/4.5com

225lr 200rr
1reb/4comp 4.5reb/2com
lrt 3dwn rrt 5dwn
lrb bottom hole rrb 3up

pinion 1 from bottom
jbar 9" up on frame

final scale number from the shop after unloading with driver weight
525 533 left % 53.4
743 574 rear % 55.4
based on 210 driver
car is late 07 early 08 grt
thanks for your help

[washeduptoo]

How much rake is that in the jbar, seems like alot, 4-6 inches of rake usually works pretty good. Are you trailing the rr any, if so, close up the trail some. Is that a qc or 9inch and if you could give bar angles in degrees it would be helpful as most brackets aren't the same.

[rubbinsracin]

as washeduptoo said, id check your trail. also maybe raise your LR top bar one hole to start. 170 lbs of wedge is quite a bit of wedge. might try dialing it back down to like 100ish.

[sj valley dave]

We run a GRT with similiar spring rates as yours..When it really slicks off, we will be 2 down LRU bar, bottom LRL bar, 5 down RRU, 2 up RRL ..36 inch 300 lb 5th coil with a straight 75 shock...150 lbs bite...Shorten up your right links some...Bring the upper to 17" and the lower to 15" just like the left side...Take a little stagger out also...