Hi Keith
The 99H prefix means it's a 998cc engine so not an MG Metro as these were all 1275cc units! The main problem is you need to identify whether you have an A series or an A+? A series is the earlier unit but any 25D dizzy will fit whether it's from a 998cc or a 1275cc! The later cars A+ will also use the same dizzy including the electronic unit found on the MG Metro (amplifier on side of dizzy) the later cars use a 45D 49D dizzy and the easy way to till if it's the A+ unit is it's held in place with a fork type clamp the earlier one has a full clamp and usually a thumb wheel on the vac unit! So there are only 2 types of drive early and late. Hope that helps
Oz Cooper
Classic Mini Product Manager UK
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