exhaust leak nightmare......

[Jordanbsparks]

Hi all! Been a bit since my last post here but i sure am glad these fourms exists.
so the deal isis that iv got a 74 k10 with the i6 250 is got quite a bit of miles on it. I was driving down the interstate and pulled off to get gas, well at tje light to get back on i was accelerating and something gave way and i had the most bad a#@ exhaust leak ive ever experience. Got back took off manifolds and saw that on the #3 exhaust on the corner of the ma ifold there was black splater mark witch i saw as a pretty good sign thats where it was leaking. Well i replaced gasket, replaced manifold, had intake and exhaust manifolds re surfaced with new gasket .....AND a lot high temp rtv. Still a leak at the #3 and the only option i see left is somehow the head is warped right there not allowing the manifold set up to seal and blowing gasses out the asses of the manifold. If anyone has input on any similar experience please help im at the end of my line.
Thanks