she wont start

Hi,
I just performed an engine swap on a 93 thunderbird. The old engine ran but had a terrible knock, so I replaced it with another 3.8. The engine was out of the same year and model, however now that I have it hooked up, it wont start. Its getting a spark and its getting fuel at the rail. It just cranks and cranks. No start? Please help!

have you checked to see if the injectors are getting a pulse of power to deliver the fuel to the cylinders?

Havent checked that yet, I will check it today, Thanks

also make sure the timing is on b/c it wont start if thats not close enough.

turns out it was the timing, It was 180 degrees off! Now on to the next problem... high idle! Thanks for your help!