I have a 1976 Mercruiser 233 with a Rochester "2 Jet" carb. The numbers on the side of the float bowl are "17056197" and, just below that, "262 5 2". It has an electric choke. I have been replacing the accelerator pump once or twice a season - the rubber "skirt" seal on the pump tears causing the carb to flood. The engine starts and runs wonderfully with a good accel. pump installed. In talking with the parts guy at my local NAPA store (thank goodness they can get the part for me!!), this is apparently not unusual for a Rochester 2BBL.<br /><br />I have several questions:<br /><br />1. Is this actually a 2-barrel carb or a dual-jet single BBL?<br /><br />2. Is there is non-Rochester carb (Holley, Edelbrock, Weber, etc.) or more reliable Rochester that will bolt on and be less troublesome?<br /><br />3. What would be involved in, or is it even possible, to upgrade to a 4BBL for more horsepower. I believe this would require a new intake manifold as well.<br /><br />4. What about electronic fuel injection options (throttle body, I would assume)? Probably "big bucks", but might be an interesting option.<br /><br />I have detailed photos of the carb if they would be helpful - I'd be glad to email them.<br /><br />Any help or thoughts would be greatly appreciated!!
