Feels like the engine is running on 3 cylinders, On my way to work yesterday my usually reliable yota started acting od Options

[SpoonR530]

On my way to work yesterday my usually reliable yota started acting odd. The car has very little power almost feels like I am running on 2 cylinders. The 7afe literally sounds like a subaru wrx box engine. As I am accelerating the engine feels like its working fine then drops in power then jumps in power. It died on me and woulnt start up so i pushed it into a parking spot on my way home from work.

Sounded like a combustion problem to me so i got some new spark plugs replaced them. The engine started up but limped home. The old spark plugs looked like i was running rich, lotta carbon, but not too bad. The weirdest part is that the check engine light is not on.

There is spark on all four wires and i wasnt reving the engine very high the last couple of days.
Im stumped and dont really want to take it in to the shop. N E ideas? Injectors, destributor, timing belt???

Any help would be appreciated ,
-nick