Hi! I?m new to the site and new to boating but an anxious to learn and get my hands dirty. I just bought a 1993 19? Regal with a 4.3 l Mercuiser with an Alpha One drive (2nd generation). I was told the boat has been sitting for a couple of years. I removed all the gas, replaced the fuel filter and cleaned the carburetor inlet filter. The motor turns over fine but I have to keep the RPM?s up around 1500-2000 to keep it from stalling. I figure it may have been bad gas and tried to run it for about ? hour however it?s still stalling at idle. Any advice would greatly be appreciated. If I need to get a new carburetor what would be a good replacement?