Quote Originally Posted by rkrenicki View Post
I would suspect either a vacuum leak (28 year old rubber hoses and all), or the carb itself needs to be cleaned out/tuned up.

Unfortunately, I do not have a whole lot of personal experience with carburetors, but the symptoms you describe seem to be somewhat "common" with older carbed vehicles.
Thank you so much for your information, we will certainly take a look at this! We will let you know!