95 chevy 1500 cutting out

[81ratrodc10]

so i have a 95 1500 ext cab 5.7 350 nv3500 5spd started having a issue doesn't do it all the time i thought i had some bad gas at first but since a fresh tank still happened i don't know were to start with it doesn't matter what gear i am in if i start to get on it it stumbles and falls on its face like its not getting gas at that moment i push in clutch rev the hell out of it and it catches back up with it self like i said it doesnt do it all the time i can drive it for a week with no problem then it will happen any help would be awesome