1996 miata not starting
 

I need some help, I recently pull my engine out and change all the seals, water pump, timing belt, spark plugs. now that everything is back together the car wont start . when I try to start it cracks up but nothing. I have gone trough routine trouble shouting... check for spark (all of then are good), fuel pump working, fuel delivery ok.....
please help

I'm running 550cc injectors with a FM link ECU if this would help

THANKS