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  1. M

    372xp Popup build tips

    Seems there's a lot of options to go about it between the aftermarket popup pistons or machining your own from a 268xp piston. What's your favorite and why? I was leaning towards the 268. What says you?
  2. M

    3120 Scuff

    Just picked up this 3120xp for a milling rig. Piston has some scuffs, doesn't really look like any transfer. I was thinking about pulling the jug and checking that there is no transfer, chamfer the exhaust port and maybe a new set of rings, possibly a new piston. It blows close to 150#. What...
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