SOS Find the right PROP

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Recruit
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Jul 25, 2011
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Bought a 1990 Chris Craft 177 Concept [IO] bow rider 18'6"
Beam 93" Weight 2945 lbs. Fuel capacity 21 gal.
Engine GMC 4.3 V6 2 [V] ( 262 cu. in. )
Full throttle operating range 4200-4600 Rpm
Ia'm looking for a little more top end speed, when not pulling any skiers if possible.
runing a Power Tech 13 1/2 X 21 Rh. 4 Bld. S/S My WOT is 4600
This is with a full tank of gas 4 or 5 pepole on board, plus skies ropes etc. Hole shot/plane fast right on.
With that in mind my WOT 4600 Speed is around 35 mph. Think I might have sand in the tube mph is up & down Should I be looking for 14 1/2 X 22 3 Bld. S/S or 14 1/2 X 23 3Bld. S/S Or should I leave it alone? Thanks every boody for the help.
 
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