<VV> 1967 Monza 110 PG HV Carb Questions

[Charles Lee]

I tore apart a carb for the first time - found lots of tiny little parts to 
keep me busy for a while !

Found green grunge, although carbs seem clean otherwise (fuel filters etc)

Fuel floats are OK (?) but bowls look "dusty" after a few days in So Cal 
heat...

Here's what I found so far :

http://www.yourbuyersinn.com/Cars/Corvair/1967MonzaCarbQuestions.htm

Am I looking at a rebuild, or can this be simply cleaned ?

Thanks,
Charlie