And your comment about the sub 3500rpm detonation validates my assumptions I had.
Simply to much cylinder pressure for the given fuel and cylinder temps.
And I agree with your reasoning for running cooler exhaust temps by lowering the intake cam advance and higher advance due to lower dynamic compression.
Also great info on the use of a stock gasket and oem bolts with that fuel and powerlevel.
Am i right in trying to calculate about 315-350lbs rear wheel torque and your never going above that? Do you have any charts to show the torque?