1/3 scale model V10 engine - video

1/3 scale model V10 engine. 1:54 video:

https://www.youtube.com/watch?v=rz0Uteqfpao

Previously:

https://www.homemadetools.net/forum/...873#post137314
https://www.homemadetools.net/forum/...2320#post76150
https://www.homemadetools.net/forum/...692#post102204
https://www.homemadetools.net/forum/...336#post135181
https://www.homemadetools.net/forum/...006#post129749
https://www.homemadetools.net/forum/...2277#post76084

What fuel is this engine running on? How is it getting into the engine? I don’t see a fuel line or any fuel rail’s?