Replaced fuel injectors BUT
 

there is still a really strong fuel odor and the car won't start. When I crank it sometimes it will go to start then just stop. Does anyone have any idea what the problem with this could be?

Car: 86 RX7 GXL N/A

look up Flooded..Deflooding Procedure.
Your car is most likely Flooded.Bad.
also search:car won't start..Something along those lines...oh also check for Fuel leaks,as you just replaced injectors,and chcek all hoses and make sure the AFM is plugged in.

Check the plug on the AFM.