fuel additives

Anyone using any fuel additives out there?

I am a bit suss on the "premium" fuel here, Anyone using any octane boosters?

I was thinking about mixing some toluene with my fuel just to make sure no pre-detonation happens. Not really looking for a nitro boost or anything! :applause:

Also anyone using valve saver fuel additive? Motorex makes some, is it worth it or not??? Is it just the same stuff as lead replacement additive?

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