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The 123JAG-6-R replaces most 6 cyl. distributors that were used in 3,4 litre, 3,8 litre and 4,2 litre “XK”-engines.

The unit offers 16 different advance-curves, that can be selected via a little switch. This is a great feature for easy fine-tuning your engine!
A good book is “How to powertune Jaguar XK-3,4 3,8 & 4,2 litre engines” written by Des Hamill.
( see : )
This book, in combination with the 123JAG-6-R, gives you all the tools necessary to powertune your Jaguar ! The unit offers a maximum total of 16 advance-curves to be selected by the end-user.

Jaguar-6-R-V – 123ignition

:  at  £254.95  each

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