27-04-14, 04:59 PM
It won't improve performance, but it makes changing plugs or removing cam cover a lot easier. I have a 4 degree ignition advancer, which gives more midrange, but a fraction less outright power. Fitting the full monty with carb rubber/air box mods is as good as it gets unless you fit a full akrapovic system or similar (££££££££££££ :'( ) Fitting a full system also gets rid of the exup valve.
If it's broken, it's not fixed.