I have pulled my engine to work on the rear seal area it appears to be leaking through the dowel pins. In the process I got a image of my crossover tube. I have never run without it. The Engine is smooth. I am now planning a hot oil box around my Y-tube. I noticed a fuel atomization issue when the OAT is below 38f and the throttle is below 1,000 rpm. The warmed intake should resolve this and help in all seasons. Dan can you show me a close up of your dip stick mod? Mine is hard to get to in the bowl.