Paging Dr. FABO: Need help diagnosing a 318 stalling problem

Update: Instead of putting in a regulator, we pulled out the Holley fuel pump and put in a less expensive stock pump that puts out less psi. Looks like the problem is mostly solved. Drove the Cuda a bunch of times without an issue, except for one stall. And even then it restarted right away, without the flooding problem.

So now we have a running car and a shiny chrome Holley pump ($100) sitting on the workbench. The Holley goes back in if/when we ever pull the trigger on the '71 340 that our go-to mechanic says he's got waiting "under the bench" for us.