Loss of power

[Profanesix]

I have read many threads and can’t seem to relate. My truck is an 18 5.3, Carven exhaust, jr mit kit. 48K miles.. the other day I started the truck up and the RPMs just bounced around. Fluctuating from low to high, even going over 1200 for a moment. I shut the truck off and restarted it and it idled fine..

 

now as I drive around I feel as if the truck is towing. There is significant lag, if I stomp on the gas I feel like I’m in my 2002 gold with 220K miles..

 

there are no lights on in the dash and it’s shifting perfectly fine.. 

 

I’m going to get some MAF cleaner in the morning and see if that’s the case but, hoping others have insights Incase that doesn’t fix the issue.