everybody says that gaz mate, and its simply not true! std 40s can run up the boost fine. but when you really push up the boost, you can buy a kit that converts them to "turbo spec" and is only £40 a carb. bargain i say.
actually no, i say............stop wasting your time with carbs and go efi, problems solved
and glyn, no worries finding about the guy for ya. i wanna see some piccies when your back!