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First off, awesome work Eric!

I am nearing the end of the printing, YEA! The parts have been printing great! I'll be sure to pose some pics when I get closer to completion.

One thing I that am confused on:

I am putting the head together and looking at the cam/valve timing, yes, I am a bit OCD and it is not making sense to me. The operation of the front half of the cam (part camshaft2) makes sense, but the rear half (camshaft1) has me confused. The cam spins clockwise looking from the front? And the firing order is 1-3-4-2 ? Has anyone looked closely at this?

Also, curry40 - I used the wind your own spring method using some wire feed welding wire. A little tedious, but works great.