Roger -

I finished reading through this on my break today (began a few nights ago), well done on your efforts. As a compliment, you have inspired me to fix some carb related items on my van as well as one of my motorcycles. In case you need any Holley parts I have a couple parts cases of them (jets, gaskets, o-rings, float, valves, secondary springs, crush washers, etc...).

Early on after my engine swap with the 4bbl Holley I had a symptom where suddenly the engine would barely stay running, but it wasn't consistent. I found that the secondary float had a hole in it and kept the needle valve open dumping fuel down the intake from the overflow tube. That carb was a "rebuilt" when I bought it so I assumed it was fine and kept looking elsewhere. What does Jeff W say about assumptions....

You'll get it. You always do.