Just an update as to how things turned out with the popping issues i was having.

I took the roadrunner to my buddies shop and he spent some time tuning the Edelbrock 650 Thunder Carb. After a couple of times replacing jets he told me had to turn down a pair of jets on a lathe to get the perfect size for my application.

The car runs awesome now, better then it ever has before. So in the end it was a very lean condition that was causing all the issues.

Thanks for all the advice and help people.

Stu