I have a 1998 Monterey with a 3.0 liter 4 cylinder. I think the accelerator pump is bad and thought I might as well get the whole carb kit as long as I was taking it apart. Not sure which kit I need? The number stamped on the side of the carb is 807504 with the number 7403 under it. I believe its a mercarb 2 barrel? Any suggestions or direction? Thanks...<br />Joe