1993 chevy c1500 5.7 ruff idle dying more so in gear than not.

ok i have a 93 shevy c1500. Idles fine in park on start up it may die but fires right back up. You can throttle down in idle most time no worries and when yo u let off the gas she goes back to a smooth idle. put it in gear and she idles a little ruff sometime but takes off give it any gas and you have to feather the throttle till she catches right to take off if not she falls on her face tack drops to nothing you cant even tell if its running let off the gas and she storms back to life like she is flooding. after start up if you feather the gas and find a sweet spot she takes off. Runs ruff any change in postion of the throttle throws her way off. After start up or setting a few hours she will die at stop signs and red lights. you have to use the 2 foot method to keep her going. After she warms up and i mean she drives that way for miles and you have to feather the throttle to keep her running letting off the gas she wants to die sometimes. Then sometimes after she is warmed up she is fine she takes off runs fine unless you punch it to the floor then she dont know what to do sometimes she dies but like she chokes her selve out or floods. If she is runnign good 55-75mph is fine even jumping from 55-70 give her gas and she goes. Its all over the place sometimes sitting 10 minutes she acts like this after you fire her up sometimes she acts like she is not getting enuff or to much fuel. Sometimes if your doing 60mph and slow down you give it gas and she acts like its to much other times she is fine there is no pattern besides when i start her up in the morning. most times i have to start her twice cant give her gas leaving the drive way or she wants to fight it. my road is the length of about one and a half foot ball fields at a slight slop. she dies half way down my road and because its gravel you cant even tell she is dead till you try to brak at the stop sighn or look down and see the tac is dead. She fires right bcak up but you cant goose it you have to feather the gas to no flood her out or kill her agian. I have changed cap button plugs wires egr mass air flow throttle postion censor. each mechanic tells me something diffrent i do it and still no fix any help would be graetly apprciatted. Sorry for my spelling lol im no writer or mechanic.