well all the irish lads will know what im on about,have to use it but which is best?or what do you use,,im putting in millers 2point octane,,,can you recomend a better one???
Haven't got time to help out at the mo but do a search on www.gtr.co.uk ... there's a really good thread on there about which Octane Boosters are best to use, I believe from memory that some of the recommendations are actually backed up with some scientific proof too! (i.e. dyno readings etc.).
If you can find it, i'm sure it will help you out.