292 random shut down at idle

[East50Nick]

Hey guys, I have a fairly unique issue here. I have a rebuilt 292 straight 6 engine with the summit brand hei distributor in it. New American auto wire harness, New alternator, battery etc. Everything is new. The engine has the lump port kit installed from 12bolt Tom, im running the split headers from 12 bolt Tom and an offenhauser 4 barrel intake with an edlebrock 4 barrel 500 cfm carb. I took the carb and distributor to a local hero amongst the race community around here, Bob with competition carburetion to jet the carb and curve the distributor to match what the engine needs based off of the build. The engine build is like I previous mentioned, lump kit, mild rv cam, over bore of .030 and roller rockers.

The issue I am having is the truck fires up, and runs just fine, and without any notice at all- shuts down. I mean, no notice at all, just shuts it's self off.

We have a fuel gauge in line to monitor pressure, which remains normal. We have jumpered ground from the battery to the distributor, we have jumpered hot to the distributor. Same thing, it shuts off with zero notice at all, and then fires right back up on the first crank.

After off and on troubleshooting for 2 years and replacing the pick up coil, pick up module, and coil to no avail, I took the distributor back to Bob with comp carb here in town. He bench tested it and said everything is working as it should. I brought it back home, installed it- same thing again. Shuts off with no notice and no stumbling sputtering or indications otherwise.

Have any of you ever dealt with something like this? I am at a loss as for what to do at this point.

Thanks for any help in advance.

Nick