... make sure your steering trim is streight when coasting, once that is done if it pulls hard one direction check for sloppy linkage and suspension parts, if thats fine re-allign it so every tire is pointed the same on both axles.

its pretty normal for a car to pull a little under acceleration, unless its a hard pull or constant "darting" its somewhat normal.


ps, read up on toe, camber, caster adjustment.