can having a bad thermowax pellet mess up the way the BAC operates and retard my timing???

 

if your talking about the thermowax for the cold start operation then i cant see how it would mess with the timing. It might mess with the BAC a little. It can mess up idle if its not funtioning properly. All its doing is pushing the throttle open a little more to help the car get warmed up when first started then as it gets hot it sort of melts and lowers the throttle, or so this is how its supposed to work.

 

No and no. Completely unrelated parts.