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Thank you very helpful. so if i were to pick an aluminum prop you suggest a 15 pitch so this would be the only choice. Is this what you would suggest? do you think I would still able to get 37/38mph on a 1989 montauk?

- 13 1/2" 15(pitch) 3 (blade) Aluminum pressed in 6E5-45947-00-00

- would you go 2 or 3 holes up?

- any other suggestion for control cable lengths?

I am really have to move forward with mounting the F70 and rigging it up.

Thanks again for all your help and suggestions - Whaler Central is tremendous.