[TitaniumTT]

If your intentions are drag, remove the sleeve and be done with it. You realize that the factory sleeves are iconel and there to keep as much of the exhaust heat from transfering to the housings as possible?

As for the cured 2400* paint....... it was on my irons. Lasted a few thousand miles and when I rebuilt it, I was cleaning the surfaces with carb clean before the denatured alky bath and the paint came right off. Down to the epoxy primer. The primer was fine, the hi-temp paint was wiped clean.

I don't know where to go with this one.... I sincerely doubt the puddy will stand up to the heat. As in I would put money on it failing. But why not test it? I bought a lazer temp probe from Levine for like $40. Same company that makes those code checkers that you can buy, pretty damn accurate too. Buy one of those, mold your sleeve, and put it next to a factory sleeve. Heat the bejeezus out of both and when the puddy melts, hit it with the temp probe. Then report back.