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3 blades did not work better on my blackthunder. 4 blades did better. The boat did not like 5 blades. I have a good set of 4 blade merc,s 17.5/29. I have re-rigged my boat with #6's and don't need...

Have a good set of 17.5x 29 4 blade merc and 16.5x30 4 blade Dennis 2486404114

350 ford pulling a black thunder. Who cares about fuel MPG ! Get over it. You want to play you got to pay. Do you really need that boat!!!!

I got a set of 1.42, Let you know how they work out

Looks good. Is the boat new? I have a 96 430sc Took off my 3A' and installing dry
sump 6's. Gimbles on, hoping to have engines back in next week and in Fl. by end of year to test.
What gear ratio...

I'll take both for $150

I am the one with the 3A' from the factory. Been great drives. My boats getting a new tramson because it was loaded with water. Boat was rigged by Bobby Moore not blackthunder. He did not seal the...