With a good set of cams (which Franklin Cams just came up with a few sets of cams for the VE motors, we're all just waiting to see some dyno results) and upgraded valve springs, all you have to worry about is the bottom end staying together at 10k rpm. The head is superior to any DE or even the DET as far as flow goes, plus all the rocker arms and stuff are no longer an issue due to the head design (think Honda heads), so the head is good for 10k rpm, easily.
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