Hey all,<br />It's been a while.<br />I need to upgrade to a stainless prop on my Crestliner C185 with 470 I/O (fiberglass, open bow).<br />My 19 pitch prop (2+ repairs) shoots right thru 4200 rpm and keeps climbing. At 4500 Rpm I back off even tho it is still climbing. 4200 RPM = 34 mph GPS<br...