I really don't think that it is necessary to do anything to the stock sleeves unless you are planning on running above 900 HP. The stock sleeves have already withstood 1300 HP on Smithtown's drag racing Z. Granted that it was only for a short duration, but still, it held up. I do not plan on doing anything to my sleeves and I am shooting for 800RWHP or around 900 crank HP.
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