car lops like it has a big cam
 

My car lops realy bad and i cant figure out why i check for vacume leaks and checked the timing anyone have any ideas it started after i replaced fuel injectors and cleaned out throttle body

Pull plug wires one at a time to see which cyl. is mis-firing. Pull plugs and check. Sometimes after cleaning intake system, a plug or two will foul out.

Check your timing.

That's what mine did 2 weeks ago after I did exhaust manifold gasket. The culprit was cam position sensor sitting one gear too far (distributor in 7MGE). Mine was 15-20 degrees advanced, barely idled.