sycamore,
you may be right, of course. However, Pete Law, the thermodynamicist who designed the Ghost's cooling system, is quoted in Air & Space magazine as saying that the anti-detonation injection (ADI) fluid (a 50/50 mixture of methanol and distilled water)
had doused any flame. He told us that a friend who had been standing a hundred feet away had been splashed by the stuff.
The Ghost carried 1 gallon of ADI fluid for every gallon of Avgas or 150 gallons of each on every flight. Link to the article:
Tragedy at Reno | Flight Today | Air & Space Magazine
Also, within the article, there is a link to another great piece on the Ghost's modifications in EAA Sport Aviation (haven't seen it posted here, so apologies if I missed it). There, Leeward was quoted as saying that
the seating position in the Ghost is stock (...)
EAA Sport Aviation - May 2011