1995 Toyota Corona High rev

Once I warm the vehicle up it Revs high around 1500 rpm.
Was all good and then I didn't not use the vehicle for 3 months, had to change the battery and ever since it revs high.
The accelerator seems to stick as well.
I have checked the idle adjust screw and this is ok the accelerator cable is loose so not sure why the accelerator sticks seems to stick inside the carburetor?
Vehicle was good as gold before I did not use it for 3 months and still goes good just revs high when it should idle