Edelbrock Performer runs rich at Cruise. Any suggestions?

[DaveEFI]

Thanks all, some really useful information and your input has been greatly appreciated. From what you are all saying I feel happy to revert back and continue running without a Vac Advance. From my personal experience the car feels slightly unsettled / surges with the vac advance connected.

However, apart with continuing with the journey above you have now planted the seed re a programmable ignition system. Is this easily achieved within a reasonable budget? Does it require an Engine Management System with lots of inputs? Perhaps a question for another Forum Subject?

Many Thanks
Allan

Before you make any decision about that, consider a MegaSquirt, etc. Which can be used ignition only - giving you the choice to go injection too later if you wish. As regards the total cost of doing such a job, the extra cost of an MS over a MegaJolt or whatever isn't that great.