Common things to look out for is making sure you didn't forget the ignitor, and not having the fuel lines reversed. Try taking the injectors out of the rail, and turning the car over. Don't do this too long because you will get fuel all over the place. But it's a good idea to see if your even getting fuel through the rail/injectors.
If that works, then it's not a fuel issue.
If that doesnt work, and no fuel comes out, then theres something wrong between the injectors and your fuel filter. (IE reversed lines, or bad FPR, or even clogged fuel filter if its been sitting for a while?)
Just throwing some ideas out there