For anyone still folowing this thread, I went ahead and took some pictures of the carb/engine on my car, in case that helps things at all.
The images are at this link. WARNING! The images are 1600x1200 res and as such are quite large.


Also, for the new carb I'm thinking of going with an Edelbrock Performer Series 750 cfm carb. Jeg's has a factory remanufactured one for $209. Seems like a good deal to me. Any thoughts guys?