looks like i didn't do enough research and ordered the wrong prop. oh well, lesson learned. glad im only out $27.25. but its a very nice looking prop and im sure it'll work well on the right outboard. the # is 309946. it doesn't fit my evinrude 35514-22620.
yes, i would like to increase the rpm from 3800 to 4500. jus trying to get all i can with what i got. seems like the CORRECT prop would get it there.
i like to run tach's on all my old junky motors, outboards and old snapper comet mowers. jus a piece of mind for me. i've been running tiny tach brand for a while now and jus recently trying cheapo ebay tach's. cheapos are within 30 rpm compared to the tiny tach brand. even closer on my junky truck.
as far as the tune, new coils, points (gapped at .020"), condensers, leads, boots, plugs (autolite 303 gapped at .030")), water pump impeller, 143* thermostat, needle jet packings, float set level to bottom of upper carb base (when turned upside down), needle and seat, fuel filter, fuel hoses. fuel mixture is 6 oz of tcw-3 to 1 gal of 93 octane gas (with up to 10% ethanol) 21.3333:1 is close enough. i also add 1 oz of seafoam to a gal. of fuel. carb settings work best when low speed is set 3/4 turn out from seated, high speed tops highest rpm at 1/2 turn from seated. last cold compression test on 7/27/17, showed 110 lbs on bottom cylinder, 120 lbs on top cylinders. if i missed something on tune, plz let me know.
i going to slow down and find the right prop for this rig.
again, i thank you all for your time to reply, rick