Hi everyone looking for some advise been out the game 12 years when superjets were the thing so all this is abit new to me, Rebuilding a et967 in rickter xfs hull, was on a b pipe with stock ingition, will now have a power factor pipe, its on pump gas domes, will be running 99 super unleaded but i do run my bikes on avgas so its an option, 48mm spectrum carbs, ive got a total loss igntion what sort of timing advance would be a good starting point please?