I have the 1850 with a 175 Opti, my buddy has the 1850 with a F150. We’ve both spent time in each others boat, they’re both nice setups.
Like Kooty said, I’m faster out of the hole and about 3 mph faster with a heavier load in the boat. With comparable loads in each boat there’s more difference. As you get heavier loads in each boat there’s more difference.
I’m a fan of DFI motors and I prefer to max the horsepower, but there’s nothing wrong with the F150 on that boat if you don’t mind giving up a little performance. The F150 is quieter than the Opti at low and mid throttle but as you get closer to the top end they get a lot closer to each other in volume.
One thing to consider is that boat has a wide hull and Rangers don’t have the reputation of being fast boats. I think the 1850 / 1860 could easily handle 200 HP, just like the Skeeter 1880 does.
Hope this helps.