Car help please

[ElGringo]

I know nothing about cars, and really don't trust any of the mechanics where I would live, so thought I would post the question here. I have an older (1989) Chevy truck. It really does well, but have lately experienced a problem where when I come out of a dead stop, when I press on the gas it takes a minute to get going. It is colder than usual here in the mornings (when I usually experience the problems) but even then, that is maybe like 70° when I start the car. I don't seem to experience this problem in the afternoon or at night on the way home. My thought is fuel pump or fuel filter, but you can fit what I know about cars in a thimble with room to spare.

Any thoughts or suggestions would be greatly appreciated.