First off I know there are alot around this subject however I have not found an answer for over two hours. I have a 78 camaro with the original 350. The cylinder heads that are on it are 76cc original. I am needing to rebuild them. How,ever I don't want to tear it apart and have it sit at a michine shop for a week. I have another set of heads that the casting #s state that they are 71-72 350 LT! 75cc. My question is, are my extra set of heads better , worst, or about the same.
Thanks,