Car cranks but doesn't start

[swill20]

I have a 2003 ford taurus with the 3.0 in and it was running before I dropped the stock tank and put in my fuel cell. Now that I have my fuel cell in, it just cranks. I put in a new fuel pump, checked all the fuse boxs and even got a new battery to try. I am getting fuel to the rails also but it won't start.

[4sasquatch]

Check ground.. You sure the fuel to the rails is under pressure?.. Regulator may be junk?.. Got spark?..