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?
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.