Hello,

I have read everything that I can on this topic and I am grateful for any insight that I can get.

I am currently running a 2000 rope tiller Johnson 25hp 2 cylinder on a heavy 16ft. I am spinning a 10.5 x 11 SST prop. Last year I had a 1989 30 Evinrude 30hp on the boat. It died a slow death due to electrical issues.

The new engine is about 4mph slower and a slug out of the whole compared to the older engine.

The Johnson is stock. I have four different carbs for it currently.

Two 25hp carbs late model.
One 30hp carb from the 1989 evinrude
One late model 30hp carb with a plastic top that looks different.
All have primer tube.

Is the 30hp plastic top carb better then the old style 30HP carb? Would an older 35 carb with the choke plate be any better? What is the best carb I can run? I am looking for low end grunt. Top speed is nice but not goal. Any 50hp or 70 HP carbs work? Anything you suggest?

Thank you for our insight.