360 stroker oil pan leak, pan out ready to re-seal couple of Q's

After you spend umteen hours , laying on the cold garage floor,cleaning the silicone off the oilpan rails, I bet you'll never do that again.
You can run up to 4psi regulated air pressure into the dipstick tube, with the valve cover sealed, and soap and water will find all your leaks.

I installed header evacs once, They work real good. until I entered a RallyCross event, and about 40 seconds into it, A huge cloud of smoke began to follow me all the way down the back straight. That's working too good. It seems, I filled the valve covers with oil and the evacs sent most of it into the mufflers. It finally stopped smoking half way home.
The following winter, at it's annual freshening, I cut some oil drain-back channels in my almost new aluminum Eddies.And now the evacs are languishing on the shelf with so many other also-ran ideas.