Hard starting assistance please.

Ok so car has been in the shop being restored for the past 15 months. So problem one is the old gas going through it. I put 91 octane in and some octane booster in. Motor is an LA based 408 with about 1000 miles in it. Brand new edelbrock 1906 carb. Car starts real hard, and has a desire to stall but once warmed up seems OK. Now I didn’t run the new plug wires and I was looking at them and, from the diagrams I have looked at, they appear to be off. Any assistance will be appreciated. My finger is pointed at #147985684-AAC5-4843-AC69-2C0B3627356B.jpeg