Steve,
I have a simple 40cc (model plane) in tank, anti surge container which...still surges 🙄 at around half a tank (uphill runs only). To mitigate, I have always run with a full tank, keeping above 2/3 of a tank. Around 20 minutes consumes 20l of fuel on a high speed track, then I refill.

I would rather try a simple modification to help refill my 40cc container faster than fit an external surge pot. Whilst modified, I won’t fit mods that void my insurance or registration. I like that it still has A/C, a nice stereo and a very standard look...for something approaching 500hp 😬.

__________________
Speak to Shane @ SMC Tyres, Unit 6/385 Sevenoaks St Beckenham WA 6107. Mobile 0413 128 087. Tell him Maddog sent you!