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Steve, thank you for your response, I appreciate it.
My thoughts are that this is a track car and advancing the timing will move the power band lower. I did some modelling with Dyno2000 and advancing the timing by 2 degrees moves the torque curve slightly left but does not seem to affect the area under the curve. This might give a little more pull out of the corners sacrificing the top end a bit. By doing this I get 2mm+ clearance on all exhaust valves. I am inclinded to try this before tearing it down and sending the pistons to a machine shop to cut them 1mm.
You mentioned 10.5:1 is not much static compression with those cams. Can you expand on this a bit. Do you mean that with the large overlap of these cams I can run a higher compression? What will I give up here?
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