Thanks wb. Seems I’m going in wrong direction. See here:
https://m.youtube.com/watch?v=1Q3nMs...ature=youtu.be
Car won’t start now. This is similar behavior to that bigger Venturi carb I put on the shelf I mentioned earlier. This is original base plate, original carb top and replaced carb bowl. All the mods already discussed. What would cause this? Air bubble in gas line?