Odd sputtering issue

F-150, inline 6, front gas tank only,
- Hard to start (crank over 3 times before firing up)
- PSI 20-25 KOEO been the same since i got the truck a month ago
- i have a new fuel filter, but i havent replaced it yet
heres the new problem. after getting the truck running, it goes great. good pickup and good running. after it gets hot, it starts up well after that. the problem is after the hot start, i have a very bad sputtering.
this is the first full tank since i got the truck and added fuel additive (lucas) to clean the injectors and such.
HEEEELLLLLLPPPPPPPPPPPPP



