Ok, working on a 62 C10 with a 235, that will eventually see a 261. I'll be putting on dual carbs and Fentons, and if I can find one a good mild cam. I was wondering what diameter exhaust pipe you all will recommend. Would 2 1/2" be too big? I'm thinking as of now dual 2 1/4" with a crossover and good turbo-stlye mufflers. What do you all use/recommend?