won”t stay running

I have a 71 dart with a 225/6 with a holley 1920. it starts fine but dies when it warms up, if I am not giving it gas. I don't know alot about these old mopars but I am trying to learn. I tried to adjust the idle and it helped a little but not enough and I am out of ideas. it has a new fuel pump and filter. If anyone has any ideas let me know I am stuck.
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