1968 Valiant...

Needing assistance BIG TIME. I'm fairly new at cars in general and thought that working on an older car would be the best way to learn...

I recently bought a 1968 Valiant with a slant 6 225 and a holley 1920. I am having some problems with the carburetor / vacuum lines. I rebuilt the carburetor last night and realized that the carb never had a fast idle arm and seems to also be missing a pump return spring so I'm desperately trying to find these. First, any suggestions of where to look for these parts?
So, after getting the carb back on the car the car now makes a slight ticking noise and the engine is not running as smoothly as it once did. Any suggestions for that? And finally, does anyone have a vacuum diagram I could get a hold of?

Much appreciation for any comments or suggestions!

Oh, and addendum: I'm new to forums in general, too... so bear with me if this is the completely wrong forum to place this on.

-trace