Backfiring out carb and wont run right

Ok a quick update. Thanks again to all who have posted some ideas.

I didn't get a chance to mess with it as much as I would have liked to but I did a little. I got a fuel pressure gauge and I am running 6-8lbs. So that takes care of that.

Like I said earlier, if you slowly move the throttle, you do not get any fuel coming out the accel. pump nozzles. Only if you give it a quick burst. So I pulled the top off the carb and checked to see if the accel. pump had any issues. It looked fine so I blew some air into the fuel passage from the accel. pump and it seemed clear. Put it all back together and same issue of no fuel. So I ordered a new accel. pump.

As for the way the car runs, it didn't really have the backfiring issue. It struggled to stay running until it warmed up, and then the idle was high. I didn't mess with the timing or dive any deeper then that. Another week of work and then I will be back problem solving.

Oh, and we put a different condenser in it to rule that out, and we did. Same problem. But for whatever reason, it doesn't seem as bad.