my rpm gauge goes up and down on 2004 Chevrolet Impala

when traveling up a ramp I seem to have no power and when I am driving normal it seems like my impala wants to accelerate.

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
i would have the fuel pressure checked and the cat coverter checked for blockage.

thank you for your advice. I'll have my mechanic check it for me.