Ok, I'll have a side of dirty rice and jambalaya with my crow.......maybe some gumbo for an appetizer. It looks like it will be a great runner, just gotta ask one question, What made you decide on using the 038?
I had to stay with the 34mm stroke. The 038 Mag was the largest top end that I had with a 34mm stroke.
I started to do another one with an 036 top end. That uses a 10mm pin, so no bushings are needed. I notched the fins to get the jug to fit. Then I checked the squish and found out it had .070ish. So I quit then. If somebody knows a piston with a taller pin to crown height than an 036, that mod would be even easier. Still need to cut the flywheel though and remove the fins on the transfers.