Quadrajets are a great carburetor (despite what the know-it-all kids tell you) but they are not for the inexperienced to rebuild. However, no carburetor will run properly after setting a long period--just from the varnish build up if nothing else. Not sure where you live, but there is usually an old timer in the area that can rebuild it for you. It may cost you $100 but it still a lot cheaper than a new, less desireable carb. The trouble with most Q-jets is that most of those around today have been "overhauled" by someone that was working on Briggs & Strattons the week before