Among a ton of other mods, I am installing a set of 3/4 length L&L headers on my 460. I am thinking about going with a 3" single exhaust to save space instead of the 2.5" true duals. Good or bad idea? The motor for now is basically stock... Performer RPM manifold, 750 carb, mild cam, straight up timing, mildly ported D3s. I plan to build up another 460 around 500hp 600tq in a year or so, it would be nice not to have to do the exhaust more than once. Any and all suggestions are appreciated, thanks in advance.
John