Engine help

[ffmedic86]

Hey everyone, I'm new here, but been a stalker for several years. I recently purchased and built my UCC 427. Love the car, but since the 7 day build was complete, been having some problems. The car keeps stuttering and then dying while I'm driving. Its like it is running out of gas, then dies. It will start right back up with no problems at all. I will then it runs fine and may or may not have the problem again. Sometimes it does it every 3-4 minutes, and others it may be 20 or 30 minutes before it does it again. I have been working with UCC to fix the problem, but here we are after 4 months and still have the same problem. I'm looking for a little help. I have replaced the pick up coil on the distributor twice, the distributor twice, and now the MSD blaster SS coil. None if it has fixed the problem. I have also cleaned out the fuel filter, fuel lines and tank just to be safe. I have also checked the carb and there is always fuel in the bowls.

The engine is a 347 stroker, MSD coil and MSD AL6 ignition box and MSD Pro Billet distributor.

Everything I have read is that the MSD 6AL box either works or does not work, there is really no such thing as partially working or "going out".

So any help would be much appreciated.

Thanks
Brad