This is a tire question...?, I am experiencing a trembling feeling... Options

[LigerZero]

I am experiencing a trembling feeling in my steering wheel. All I did was put some tires on 185/65 R14 on a '93 celica st, which is the stock size. They are a little more grippy than the tires that where originally on the car. But now the car trembles and all when I am doing anywhere from 20-70mph or higher. Any one know what could be wrong...?

[LigerZero]

They are not uni-directional tires, but they do have a treadwear rating 0f 160AA, and they have 8/32nds of treadlife left. They are LASSA IMPETUS HR65 and they are speed rated at H (130mph) and the car only needs S (112mph) speed rated tires. They have a tread design like DUNLOP G/T QUALIFIER TR tires. I brought them used slightly from a local dealer and they had static balanced them (balanced them on a pivot device) where the original tires where dynamic balanced (on a rotating device). So does that mean any thing? and originally the tires that where on it where almost bold and the suspension needed an alignment job that I still have got for this car yet. So any help on this subject would be appreciated. I am still trying to stop the tremble in the steering wheel though... So please HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Thanks yal..........................