shocks help

[dvx400#1]

bought a z 400 stock suspention to put on my 89 lt250 r, rear shock is great fit almost perfect, now my fronts are a litle bit of trouble first they fit but i had to compress the shock about a half an inch to make it fit, then my tires were out side ways  and in at the bottom,  i adjusted the tires but they were still in . but it look not too bad, took it for a ride and it work great beter than my old stock suspention, but when i hit a rut or a jump my tires went out and it just did't look right. could i use my old springs on the new shocks or extend my top shock mounts or can i extend my a arms and if so would it be ok. don,t have a big budget to get new a-arms so that's out of the question  just trying to see if anyone is got any good suggestions for this. thanks guys. let me know