hard starting 1990 k-1500

[57 3100]

wow, thanks guys. when i get a chance i will look into each of these suggestions. i did replace the fuel filter a while ago, but never touched the injectors. i never have messed with anything fuel injected related, so dont know much about them. i think the tbi injectors are just held in there with one screw, and easily accessible ?
i got a 57 chevy 3100 truck with a 1980 sbc and can work on that motor all day long.

thanks again guys