JCyou's 609 made around 1240 I think with a highly modified version of a RA5 head. I know there are roomers floating around it made more than that, but I don't think there is any data to back them up. I think your right about 500 cubes, but I hope your wrong about the pushrod (: I know everyone is really distracted by the pushrod, but I think like anything we are not familiar with. It only takes some time and a little outside the box thinking. The more I look at this thing the more I think it can help as much as hurt, but I'm pretty determined or stubborn how ever you want to look at it LOL.
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Don Johnston
DCI MOTORSPORTS LLC
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