1st, Heat the engine case-Not the Fins to around 200f Then, quickly get the engine running.. and get temps to 200f.. As soon as possible.. And moniter the temps alot.. and continue with the heat cycle method. Tin foil, is good.. with my V-Spec I had to take it off.. after a tank or 2.. as I used the OS heat cycle version, where you run it only slightly richer.. but get the temps to 200 as soon a possible, less stress on the engine that way.