Header leak help!!!

[ROAD WARRIOR]

I've put red Permatex Hi-heat on it, is that what you're talking about or is there something better?

I dunno, broh...if you can't even get a seal using Permatex and new gaskets, something ain't right! I've been able to seal up 2 dolla swap meet heddas that had flanges wavier than the Atlantic Ocean by using Permatex as my "secret weapon!" As a "forth and goal" trick, this is what I do: get 2 sets of Fel-Pro exhaust gaskets. Not the header gaskets, the regular parts house/ OEM replacement style gaskets that have a "foil" side with dimples. Make a sammich' outa them, with Permatex holdin' them together. Let the P-Tex dry. Then, put a coating of P-Tex on each side of them, and install 'em. It can be a 'lil messy, so take yer time. Then tighten the headers up, and let them set while the P-Tex dries. Fire up, heat cycle, and retighten.

Good luck!