I while ago I got my sportage and was going up this grade at about 50 mph, now I am lucky if I can go up that same grade at 40mph.
I have already out new plugs, oil and filter, new TPS, New MAF sensor.
Is there anything else I can do to restore my power at all?

I am going to be putting in a new clutch next week beings I am having to double clutch mine right now.

Will the can of "restore" help out at all?
Right now it takes me about 1 1/2 miles to get up to 60 mph.