Tire hop on the front usually means the turn ratios of both wheels are not properly matched. I had this problem when I used 07 Gt wheels on my 96. How wide of tires are you using? Is there any rubbing anywhere?
My guess is that you are using excessively wide tires. You need an alignment to correct over/understeer. Either that or one of your suspension/steering components needs replaced. Check your inner tierods and make sure they aren't loose. Too much in/out movement will cause this problem.
My other guess is that you are using too wide a tire on the front, but I will rule that out for now. Check the above first.