u/Top_Net_39

I’ve got a 93 5.2l v8 picked up from a trade a couple days ago. Guy said the engine had been rebuilt 6000 miles ago but it’s now stalling, idles rough and smells like gas. It also shakes sometimes when it idles low and when I get around 55mph under 2000rpms.
All the injectors look brand new, the IAC looks new. I can’t find any fuel leaks. What could the issue be? Fuel pump? If anyone knows where I should start please help me out. I can take pictures or videos or whatever but I’m gonna need this car soon.
Thanks