Suggestions for new headers

[Coach]

Hey everyone, I'm brand new to the site. I recently bought a 1967 C10 Stepside and put in a new Chevrolet Performance small block 350/290 hp crate motor (long story). I need to replace the headers as the flanges are pretty thin and causing a slight leak. Looking for suggestions on quality headers to match up with a Magnaflow exhaust (some recommendations have said Sanderson headers would be the way to go). Thanks for any input.