I have a 1989 mercruser tops out at 3000 rpm

[dmiles452]

Is this carburetor the original one that let the engine go to 4500 rpm?

yes it is

 

[dmiles452]

What are the compression numbers today?

How old is the fuel?

TB IV or points? If points, when did you service them last

The TB module on the outside of the distributor was recently changed, I have since been "told" that there are two models, one of which has no ignition advance. True or False

 

[alldodge]

False