When starting to drive off,my sportage has no power and stutter's going down the on 2000 Kia Sportage

Happens all the time.Not driving at present,but need it on the road

Asked by for the 2000 Kia Sportage
Key way is broke that holds the cam in place. Less than $10 for the part to fix. I would replace timing belt since you have to pull it off to get to the cam. I had this same problem