what is your timing at now initial total. If your timeing is way off ya you can get more hp out of it it all depends no one can help you with a post like this. stock internals what do you mean ? rotating assembly, cam heads ignition ... all of this will matter
[img]/phpBB/images/smiles/icon_cool.gif[/img]set your initial timing at 10 degrees btdc, then later push it to 12 then 14. if you get detonation, back it down untill the detonation goes away.
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