ORIGINAL: JoeAirPort
I get 8400 on a Bambula 18x8. It peaks out at 8700 then I richen it up.
That's Morgan FAI fuel, K&B 1L plug.
Looks like the Bambula 18x8 is the same load as Pro Zinger 18x8. I shall give it a try.
By the way, I tached the Moki 1.8 w/ Pro Zinger 18x6 on 5% Wildcat fuel, peaked @ 9200 rpm.