Got to the track today and spent some time re-tuning,Before the run times were around that 11.15 Now just over 13.00 mins

Very suprised.
Few changes beside better tuning I added a exhaust line cooler,moved the hoses away from the pipe and added a alloy heat shield on the fuel tank,about 1.5 mm thick.
When I came in to refuel I didn’t see that misty vapour floating around inside the tank.
Very pleased with the outcome.