DK4A distributors

[Malcolm Parker]

Howard, I always try to put Tesco Momentum E5 in my seven.   During the petrol shortage last September I had to use some Tesco E10 and it didn't like it at all.  There are forumists who use E10 and are happy with it but not me.  My engine is probably a similar spec to yours except I use a 1 1/8" SU.
Regarding distributors, I have tried Lucas DK4A and various Bosch equivalents.  My experience is that the engine runs sweeter on a good Lucas distributor than on the Bosch.  It is easier to find a poor Bosch distributor than a good Lucas one!