1850 cl spfish +135 opti prop

[lil al]

recently bought a 1850sportfish with 135 boat is great would like to get a little more bow lift it has alm.stock 19in prop speed is not goal that's fine also could use spare prop would a 19in.tempest plus give me some lift?or would going to 21in be better am gettinglow40's at recomened 5600rpms.bought boat out of state don't have luxury of trying different props.thanks for any help lil al

[vikes40for60]

What kind of RPMs are you getting? What hole is the motor mounted? What has beeen your GPS speed. This will help with advice from the peanut gallery.

[lil al]

motor is in 2 hole down from top,over rev alarm sounds at 5600 rpm just about at wot gps about 43 mph with 3/4 gas 2 people and gear. thanks lil al