Got my dwell angle set at 50 degrees today, it was 46, . not a mile out but what a difference in running. My new inlet manifold with unblocked heat risers had already made a massive improvement to my hesitation and hot starting. Setting the dewll ,feels like all the moving bits are  together in harmony, smoother running with better acceleration and when i went to restart , it didnt even turn over, just flew into life like an eager puppy when you pick up his lead at walkies time !!  👍