Help on my 440 Duster

coil? i am running a accell . but see i can go out frist thing in am and after a while it will finally fire and run like a champ drive it miles running solid no stumpling etc. then i can turn it right off with it being warm and it will go back to being hard starting . the ecu is ground well as is the motor with 2 extra ground wires to ensure its ground well...spark plugs i can see that if it runs rough

i am really at a loss like rag in the gas tank lighter kinda loss