Hi all, so I have a Chevy 350 vortec from a 01 Tahoe that I'm fitting into my 72 skylark. I want to throw some longtube headers on it. I was wondering if if I would have to get headers for the 01 Tahoe and then fabricate it to fit the skylark, or if I would be able to buy 350 headers for a 70 chevelle as I was told 70-72 chevelles would work as a donor for the skylark.