I have a monterey edge 2003 Volvo 4.3gl with 1.79gear ratio car berated. If a3 blade 14.5x19 is good for power and a 3 blade 14.5x 21 is good for speed, would a 4blade 14x20 be the best of both props.thanks for any help.
Would be good to know your wot rpm anf speed with each prop.
Depending on the rpm of the 21;
if the 21 is your normal operation prop a 20" 4 blade should do well.
