Just looking for guesstimates how fast would a v20 run with an E tec 150, 175, or 200? Also how are they on fuel. And which would be the best match for the boat.

fuel burn above 1500-2000 rpm is the same as a 4stroke and below that its 30-40% better when trolling than a 4 stroke. also i find that the 150 has more torque than the 200 unless you go with the H.O. model.

like stated above you have to prop the engine out right.

Yeah I was thinking either the 150 or the 175.

both good engines we rigged twin 175's on a 26 pro line and she would still get up and run with out tabs down on a single engine. i would go with the 150 and use the money you save on other things for your boat. it isnt a big difference in hp you probably talking maybe 10- 15 dyno hp difference and on the water that maybe a mph gain.

Yeah thats true. I found an 150 07 down here with 11 hours for $9,900.