Originally Posted by ericnova72
We are discussing moving (variable) cam timing in a RUNNING SBC engine by way of a chain tensioning device. If the tensioner advances the cam, this will advance the ignition timing too because they are geared together. Unless you have an idea for a variable distributor housing positioner that will counteract the variable timing chain tensioner, the timing IS going to change.
Because having two moving parts where there used to be none is always a good idea.
The best thing I can think to use to get around it is just going with crank fired ignition.