http://people.zeelandnet.nl/serel/
Have a look here. You my find your car listed and can start from there.
Other than that the TVR car club archivist is Richard sails and I am sure he would check details of any info held on the car.
Ian Massey crosse is well known in TVR club circles and the racing world and he may be able to shed some light on the car.
Nice to see an old climax car hopefully going racing…
N.