I have a ‘74 Valiant Scamp with a 318. It starts then dies soon as you let go of start position. I replaced the pcv valve today and it stayed running. Started back drove to get gas. Started later went to Walmart and It died while idling in park. It started back on second try and made it home. Now it is doing the exact same thing. It has a new Ballast resistor, and new voltage regulator, coil, and battery. Had quite a bit of wiring issues since I’ve had her eight months. Any help would be great. I’m not a mechanic for sure just learning about my car so I need some diagnostic advice.
Thank You so much

 

Check and replace any cracked Fuel and Vacuum hoses.. Replace the fuel filter, Check it to see if any rust or crud comes out of the filter?