‘66 El Camino 396 big block headers

Hello everyone!
I am new to this forum, but also a member of several other forums.
Does anyone know a good brand of shorty Headers or even long tubes for that matter, that fit well and don’t require a lot of tweaking to get them to fit well.
I have a friend who has a pretty big collection of muscle cars and other collector cars, amongst these, he has ‘66
El Camino that was an original 396 big block car. He has agreed to sell me the car, and even decided to throw in all the parts he had collected for it.
Overall, it is a solid, rust free truck, “Regal Red” with red interior. I can’t
Wait to get started restoring this gem!
Have a good one!
Ben Smith