Thnx guys,I think it is close enuff untill I can actually road test it{its a manual ...so a load test in the drive way is probably not a good idea }.Then I will mess with the springs and weights with the timing light.I also have the vac hooked to the full manifold vac below the throttle blades on the carb.

If I understand this correctly.. the initial timing can vary depending on what the motor wants to start well,my question is is there any advantage to having the initial timing set one way or the other?

Is the mechanical timing advance amount set on the distributor {the 12 degrees that I get now}or is that also going to change with the springs and weights?

I understand pretty good from reading how the vac can works,it helps keep the engine cooler at idle and helps emissions,it also helps fuel economy at cruise,is there any advantage to running more or less vac advance.

I understand that detonation is pretty much the limiting factor on timing advance and is not alway audible.........still keeping the motor out of detonation is there a advantage to running a little more of one than the other ?
I appreciate the answers so far and I have read alot of info but not pertaining specifically to these questions..thnx