1987 340da props and performance tips?

[sea ya]

hello i have a 340da with twin crusaders 454 350 hp would like to know the correct props for the boat the boat rides with the bow real high even with the trim tabs down cruising at 3500 rpm i still have the bench seat in the back of the boat and would like to keep it i need stern lift props i also thought about 4 blabe props so the boat would manuvier around the marina better would like to here from owners with same problems thanks for your help
also i had a reply once before about if interested in performance and fuel saving tips i 'm interested will take all advice thanks :?:

 

[keithmartin1]

My 1986 340DA has Merc 340's turning 17" bronze props. The DA's are heavy in the stern, but you should be able to see over the bow when cruising. I store a lot of stuff, including spare props, in the aft seat. No problem. The stern sits low, maybe 1" clearance to swim platform. Four blade props should be sized by a prop shop, but likely won't address your high bow problem. Move forward anything you can.

3200 rpm seems to be the most efficient for my boat. speed is 24.5 knots.