Need Help Please On Prop Size

[gmidnet21]

I have a 19 ft proline with a 130hp Yamaha 2-stroke on there with a 13x19 Aluminum prop. At WOT my rpm's are around 6,000. I heard for that motor I should be around 5,800. Would a SS 13x19 get the rpm's down since it's heavier prop? I just don't want to buy the wrong prop. Thanks

I just read this •2” of pitch is generally equal to 300-400 RPMs (2” increase in pitch =decrease of 300-400 RPMs). now I'm lost I don't know if I have right diameter and pitch. Please help thanks

[99yam40]

see what they used on a boat like yours on this web site
Performance Bulletins | Yamaha Outboards