Repower Questions- Is anyone running a Suzuki 150HP on their 19'6"

[Treefish]

Suzuki 140 on a 1974 19-6 mounted on a Bob's setback bracket with a Bob's Jack plate mounted to the setback bracket.  It held the power of my old 150 for 6 years.



I filled up my 47-48 gallon tank, full cooler, my wife and I in the boat.  Here's what I have so far:
23 pitch stainless prop. 
5800 RPM top end runs about 41 MPH (maybe 42 MPH) trimmed nicely. Jack plate up a bit, motor trimmed, and trim tabs (Lenco) down slightly.
3800 RPM to 4000 RPM runs around 27-28 MPH. 
I ran about 82 miles yesterday (mostly around 25-28 MPH) and it ate 17.6 gallons = 4.6 miles/gallon.  I'm happy with that. 
I definitely lost my hole-shot, but love how quiet this engine is.

[Dano]

Always wondered about those 140s. I have a Yamaha F115 on my 04 19.6. With my normal load, I have a good cruise of 30 @ 42-4300. Top speed is 37-39 depending. I have a T-Top which I feel adds some drag. Adding a jackplate gained a1-2mph cruise with the ability to raise the motor to the sweet spot. Boat with 1/2 tank and myself will Just touch the 40 mph mark running a 13x17p prop

Sounds like you may have a lot of slip with a 23p posting those numbers. Thought you'd be posting higher speeds and cruise.