I too have run both. Over the years I have found it advantagous to keep the water line running from the top rear of the cylinder head to the water neck. This aids in cooling the rear 2 combustion chambers. One engine I purchased the bottom extra sump on the oil pan had been replaced with a flat aluminum plate and a short pick-up pump was used. I never ran it. The deap pan also has reinforced rails and makes the best one if you are designing a dry sump or racing pan..Good Luck
