Thanks for all the good replies and yes I am wanting to keep it stock appearing so the Chinese heads it will be. The physics aspect was on rod length would the increased dwell time of a longer rod play hell with the sono/ram effect or not and opinions on valve timing and cam advancing. As noted this things tongue will be hanging out by 5200 if it makes it that far but torque should be great. Herman of course I have seen your cars on the Fl site for years and the issues with the surging, I asked over here so I wouldn't get beat up, you would think I was chopping the top and metalflaking it. Helluva crew that replied, Thanks.