anyone know how to stiffin up the steering?

i think that is called hunting, when the bike seems to swerve on its own. that stabilizer will stiffen up the stering but ya may also want to check ball joints and tire rod ends. if there is slop they should be replaced.
 
I know REEDracing94 has a duncan stabilizer on his Blaster... Might send him a PM, and ask him how he installed it... He probably has pictures of it on as well... I would try to help you, but I forgot how he managed to get it working..