I"m not sure about the camaro front end but i ran
https://speed-engineering.com/ long headers and really like them for the price, quality
I had a ls engine with a Mustang ii front and it worked awesome.. The ls long tube headers all the same from the camaro to the truck they just call them different but they arent..
I"m going to be running them probably again on my next truck too.. just trying to make a choice to turbo my 6.0 or not..