Big bores setup question?

[captainlip]

What would make the car nose dive since fitting big bores? Before it handled perfectly and now drives over jumps constantly nose diving? I'm running blue dark blue, and 45wt in front and 35wt in rear and same pistons as frauds running, handling is fine just over jumps constantly wants to go on it's roof and you need to give it full beans to get it right.