RE: Priming with ether is not strictly neccesary..
I notice that Redline 70 Weight oil they use in Top Fuel engines
( at 1000 HP per cylinder)
has a flashpoint of 220 C and castor has a flash point of 229C
Well my Silver Swallow is not quite 1000HP per cyl , but will be a good test mule for Gasoline Kero and Motor oil ,