hello, first post,, silly question?

my name is rick, i am somewhat new to the hack world, i just got a 77 gl1000 with a 56? car, the gl has the earles? forks with koni shocks and progressives on the bike, it seems set up very well, but its way twitchy, but i can let go of the bars and it doest pull either way, it doesnt wobble or do anything wierd, BUT how can i resolve the twitchyness at speeds over 45? i would like to be able to ride on the freeway a bit more,,,ie: 65-70+ is there also a sight that can explain the settings or adjustments on this front end? thank you