point gap, Carb sync and heater valve..misc problems

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My dwell is showing about 20 .. I have tried to adjust it both ways but in either case I can seem to only get a lesser value rather than a higher one. Any suggestions? The cam on the dist looks fairly worn.. is it time to find a replacement or can a new replacement part be bought?

I'm not entirely sure I have the dwell meter correctly attached. In the Haynes manula it say to connect it to the ground and the negative side of the coil but with the one I have it only registers when I connect to the ground and the positive side of the coil. It's multi function meter so this is the correct connection for tach/rpm as well.


Before I rebuild the top end on this engine and the temperature gauge worked I was getting synched airflow on my carbs but now I'm not. Is it because the temp probe is broken? The haynes manual says something about the carbs actually reacting to it but I'm not sure? Also I'm getting confused about what they mean by front and rear carb.. the rear is the one that is closet to the fire wall right?

I noticed that the rear carb is dripping fuel off the atomizer.. this is expected will idling right? but the front one with no airflow is not?


I've been noticing that the heater valve is dripping water.. I have a used replacement one but how do I replace it without damaging the wires that wrap around it's two valves?