Carb'ed motor stalling issue.
I am seeking possible repair advice. I do not know all the details of the build. Just what I have uncovered while working on the car. Its a 306, lunati high lift cam, ported e7 heads, edelbrock performer rpm intake mani, with a 650 edelbrock carb. has a MSD dist, msd 6 AL (I think), and a MSD blaster 3 coil.
Issue: the car started doing this about 2 months ago. I have owned it for 3 years and have not had this issue in the past. So the build is not the problem. Once the car warms up, if I give it a rev (either stationary or moving) once the RPM's drop it will die.
So, say I rev it while stationary to 2500-3k+ as soon as it revs down it will just stumble and die. Or , if I am on the interstate running @ 2300ish RPM's and take it out of gear to slow down, it will die. The only way to keep it alive is to feather the gas once you take it out of gear. Once you feather it for 3-5 seconds then it returns to idle and runs fine. It only does this when warm. When its cold it does not. Any ideas??