High VE numbers when changing to modelled fueling

Could someone have a quick look at my setup for Modelled fuelling? I've just swapped in a set of 1000cc injectors, I'm running a fuel pressure sensor and a differential of 4bar. I was going to use 3 bar but for some reason my FPR wouldn't go low enough when in vaccum when set to 3 Bar diff pressure I seem to be getting really high number in the VE table and I'm starting to think I've missed something

[url=https://www.dropbox.com/s/5vxitqmzlw7bw7q/Screenshot]https://www.dropbox.com/s/5vxitqmzlw7bw7q/Screenshot 2020-12-31 at 20.35.14.png?dl=0

I've attached a copy of the tune and a Log. The only way I could get the car drivable was to turn CLL on and let it add up to 20 % fuel.

I wanted to set the base fuel pressure to 300kPa to give me a higher injector pulse width at idle however although I could set base to 300 with vacuum line disconnected. When I reconnected it the regulator wouldn't reduce by the same amount as the engine vacuum so differential pressure was rising to around 340 kPa. The only way to get the differential pressure to stay constant is to set the base pressure to 400kPa.

I've inputted all the deadtime values I got with the injectors in a 3d table from CP Injection and have emailed them asking for short pulse width adder values (currently set to zero). I've read A few posts about injector dynamics quoting incorrect values for Link ECU's Is this specific to injector dynamics or is it the Bosch EV14 injectors as a whole? I belive mine are based on the same injector