hell new here I've been building/restoring a 74 dart sport with a motor home 440 pretty much stock not bored over Edelbrock heads asn 750 Edelbrock carb on tall intake with spacer and headers 2.4" exhaust
For the life of me I cant get it to run with the vacumm advance connected ported or manifold The distributor was new when I put the car together going on 8 years now Ive thought about ordering a new distributor but I don't know what direction to go After its warmed up I can get it to idle with the vacuum advance but stalls and pops on acceleration Any suggestions please

 

Welcome.... Whats the timing set at?
Also is the carb new or used?