I am working on a 1978 Lebaron with a 318 rebuilt to factory specs, the only modification that has been made is the addition of a 4 barrel carbeurator in place of the 2 barrel. Now, we can get her to run strong on the warm up and the idle, but while test driving there seems to be way too much gas and not enough spark. Adjustment of the distributer as well as carbeurator seem futile. Also, there is an electric ignition module that was sciliconed to the firewall that has since melted off. This distributor is foriegn to me as it is electronically controlled and not controlled by vacuum lines. We can afford to fix the electric module (new ones are not attainable) or get a vacuum controlled distributor but not both.
NEED this question answered first: Should the spark conrol computer be compatible with an aftermarket 4 barrel carb?
Then this question: If the spark control computer will not be compatible with the 4 barrel can I replace the distributor with a vacuum control distributor and have no computer?