Being a "newby", I want to thank all of you for sharing your time and experience with those of us who love GTO's. I'm in the process of having my 1965 GTO restored and have a question about the valley pan. The car originally had a 4 brl carb. I bought a tri power intake and carbs some years ago and thought there was a difference in the valley pan for the tri power. I can't find anything definitive in the research I've done. Any advice or comments would be appreciated.