I have a 2002 f150 with the 4.6 triton. When I go to start it in the morning it takes a couple of cycles of the key before it starts and even then it barely starts. Once it's running it idles fine but as soon as you take off it bogs down but kicks back up after a couple of seconds. When I'm driving the power will cut out anywhere from 50-6mph. And if you floor it it just bogs back down. Someone please help

 

Definitely check the fuel pressure. If it's okay, check the cats for back pressure.

 

When was the last time you changed the fuel filter?