Tuning

[Winso]

My valver is fairly lightly modified (full SS exhaust system, air filter and lightened fly). It was set up at Stealth a few years/thoudsand miles ago ago by a previous owner but has had various things done since then, probably most notably a pretty significant head skim. Is it worth me spending £150 on getting it tuned up again or won't it actually have lost much power since it was last done?

It still pulls hard but I'm thinking maybe it's got more to give...

Opinions anyone?

[Conker]

If you do your own servicing it might be worth buying a timing gun off ebay (I paid about £20 IIRC) to check the dizzy timing, but I doubt thats out - IMO it would mainly be your fueling/CO2 setting that might need adjusting, and the home gas testers are supposed to be pants.

In other words, it might be worth chucking an MOT £20 for them to check your CO2 level on their tester.