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Message: <blockquote data-quote="TRUUBLE" data-source="post: 214394" data-attributes="member: 8226">Here's the latest.The wear around the ring area of my cylinders was enough that we will have to bore it. So, we are doing custom gas ported pistons. I figured as long as we are waiting for the pistons, I might as well step up on the cam. So the setup will be:Custom gas ported pistons (4.155") and a 4.100 crank for 444 cubic inchesChanging cam from .720 lift to about 800.CR will fall from 15:1 to 14.5:1, but that should be better for nitrousGZ Motorsports Vacuum Pump to provide about 23 hg of vacuum at about 30 cfm for better crankcase ventilation.Now I need to come up with a 444 emblem . . lol</blockquote>