93 chev. 5.7 help

[shorefisher]

So my issues is start it up runs fine then after a short time when driving the motor kicks a little like a miss-fire and the tack gauge with jump at the same time but keeps running. After this starts it will stall when I slow to a stop and then will not start until it sits for about a day. I have been told it might be the fuel pump but I here it start and it will idle just fine for a long time if I just start it and let it sit running. I did change plugs, cap and roter. Any thoughts on what I might do before the fuel pump (not looking forward to that). thanks much.

[HooknHorns]

Is the check engine light on? If so run a test and see if it comes up with a misfire. Just curious, is this in a Z28 camaro LT1 or a pickup truck? Could be an injector problem.

[shorefisher]

It is a truck. Check engine light is not on. It is more like it runs out of gas but as long as I keep foot on gas to keep the RPM's up I can keep it running once it starts acting up.