Engine hesitation and Stall on acceleration

Ive been driving the Valiant for a bit now. It has a 318, with an edelbrock AVS 600 CFM, hughes wiplash cam, RPM air gap, pertronics flamethrower III dist.

Today it started to act up. When I left my parents house as soon as I made it down the street it would jerk under acceleration and then die. I though maybe the coil wire or wires at the dist were loose as I just changed them. I messed with them but no it still wanted to die after 30-50 feet of acceleration. Finally got the car home and reverted to the old plug wires and still does it so its not that. I let it cool off for a bit then started it again in park it would have a hesitation still and if I let it idle after about 30 sec to a min it would go from smooth idle to rough an then die. Im thinking fuel or carb contamination?

Im running 2 filters, a see through which looks good near the pump and a small edelbrock filter at the carb. But nothings fool proof. Carb, dist, plugs wires etc all have less than 500 miles since my build was complete.

Wanted to see if anyone could chime in on what it might be.

Thanks.