Hi Mate On the Accusump I went with the Canton recommendation which was a 2qt unit, from what I can tell Fensport actually run the bigger 3qt but I wanted to install it in the battery location and in combination with my baffled larger sump I think I’ll be OK. I’m not aware of a specific race version to be honest, the variations seem to be the valve that you use, they recommend a manual valve or the electronic valve with pressure switch for race cars, which is what I’ve gone with but obviously I’ve deviated from that somewhat by adding sensors and having the AIM MXP control it. Thanks for the heads up on the fuel pump and starvation issue too, I see Fensport have the door flap on their site so I might pick that up at some stage and fit it too. I run on both slicks and R888 so I’ll probably see similar.