BoB Spitfire 100 Octane fuel

[Kurfürst]

Originally Posted by klem

According to the boost guage, 87 Octane, it does not appear to have had the modification that allows 100 octane and its +12lbs boost.

It (Spit II) does have 100/+12 performance specs though, regardless what the boost gauges show. Effectively its the same thing as Spit I with 100 octane, there was no meaningful difference between the two in performance at high boost.