Stuck at 1500rpm's

[Chuck U&R]

I recently cleaned out a rental house.
Left behind was a lawn mower and 2 gas cans.
Without thinking I poured the gas cans into my 2000 1/2t 318 auto trans.
A few days later she died on the side of the road.
I was able to revive her with a couple cans of Seafoam but now at
1500 rpm's she stumbles badly !!!
Q - Any solid knowledge on what needs fixing / replacing ?
I'm guessing that I fried a sensor but before I start throwing $$$
I'd kinda like to have an idea on where to start.

Thanks to whoever may know what the problem is.

 

[WhiteExpress]

Interesting choice. Does the truck smoke?
Was it a 2 stroke mix?

It might just take running out that tank, 2 cans of seafoam is a LOT.

Maybe try a bottle IsoHeat incase there was a lot of water in it?

 

[jbmobbs]

Or just never use fuel from a can you find lol god knows what's been done to it lol