A lot of little stuff today. Changed out preoiler CB from a 5amp breaker to the correct 10 amp breaker. Preoiler works great. Prings cold oil pressure up to 27 PSI. Reconfigured hose form breather to bring it through the spark plug cover. This will make removing cooling plenum much easier and negate the need to use metal tubing for a sharp turn in the routing of the hoses. Secured some more wireing, particularly the EI timing sensor from the front of the crankshaft. Checked sump drain and found that it would not reseal due to a little debris cought in the o-ring. Drained sump tank (put gas into my truck), cleaned oring and reinstalled. Started laying out overhead lights and vents. Decided to move rear vents and lights forward.