Two Questions Unrelated

[elan4me]

First question: My 69 elan s4 was starting to miss at 4000 rpm under acceleration. I change the dirty fuel filter, but it is still missing. Any suggestions?

Second question: When I drive at night with my lights on and the gauge lights on as well the tach cuts off. If I turn the gauge light off the tach wirks fine. Again any suggestions?

Stan

[john.p.clegg]

No 2 Bad earth to the tacho,just try running a good temp.earth...
John

[riverkeeper]

Have you checked your timiing is right - for starters on Q1/. ?

[hatman]

The strange misfire on my car at 5500 revs eventually proved to be a knackered distributor (bobweight spindle flapping about all over the place etc). Good luck.

[nebogipfel]

For question 1 I'd say 90% probability a sparks problem

Points condenser (if it still has them?)

Plug breaking down under load?