Originally Posted by EJ OJPROP
Higher pitch will decrease the low end as well as drop RPM relative to speed, you may see a slight increase in top end, 1-2 MPH. I would not suggest a 19.5 with a 5.7 engine as it may not allow the engine to see max RPM.
Thank you Eric.
I guess I will save my money then. Just figured I would ask since nothing happens after 4700 rpm speed wise but the engine can turn another 400 rpm without change. I was thinking that a 19.5 would lower my rpm by 300 ish rpm but I would still get performance to 4800. The prop I'm running now is a monster out of the hole and I figured that a little less hole shot would not matter that much.
Again Thanks for the advice.