In the mornings i will start the car and it will die but if i give some gas and let it warm up it will run fine. When it is warmed up i try and start it will will not fully turn over but try it again and i have to keep the key for a while then it will start. what is the problem?

 

what starter are you running

 

stock

 

as far as the morning starting giving it gas to warm it up is common
for modded stangs kind of the old hot rod feel. the starter sounds like
it might be crapping out "hot starting".dont go out and buy a expensive
hi-torque starter i have on my 90'coupe a starter from a 95' 5.0 it is
small kind of looks like a expensive one everything bolts up perfect
with no problems all the wiring is the same.

 

starter is heat soaking........just buy a powermaster like i did...$140 bucks i think and i got some hot a$$ L/T's from mac on there.
i like it...just hit it once and it's fired up