Bill Haworth

Hi Ive recently bought an Alvis special (car ) and it has a B81/8B2 engine in it. The distributor is a cobbled up affair and it won't run right, does anyone know of a distributor , other than a military one , that will do the job. I've been told a DU8A will be the right one but can't locate one anywhere Any info would be much appreciated. Thanks Bill Haworth