| And the closest I have found is the stock numbers that Mallice posted. And you are very correct in the sizing of the head intake ports. I wouldn't necessarly recommend a large porting job or etc for someone who wasn't going for bigger numbers. The only real upgrade I would recommend is the larger valves. The heads are truely were horsepower is made and lost. Many companies have spent years to make a few ponnies. And some have simply made changes that have lost horsepower. Good luck on finding numbers on the different variations I haven't found many myself. Thus the only way to know is to stage it yourself and flow bench.

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