car goes right at launch,4-link

attn chassis gurus,my dart goes right at launch on the foot brake,it has a 4-link,but don't do it all the time,has a spool and fresh rubber,it does drive straight down track,i will check to make sure its sqare in chassis,would I have to shorten the right top bar,i know I should do a flat at a time,if any more info on car is needed let me know,will check square today,will like to tnt Friday night