Rebuilding a 400F: Piston and Gasket help

I just got my 466 fired up last week. If you're using the stock airbox 40 slow jet and 90 main work great. If you're using pods then that's probably a good starting point.
 
I think I posted in the wrong thread.. Haha! I meant to ask about the boring numbers and engine work. Thanks for the jetting info though!
 
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