We have 19' Topwater with a 175 carbed Johnson. Top speed is 46 with 2 guys.
I can't say enough about the boat. I LOVE IT! Everytime I get to use it, I get excited.
It runs smooth, for a shallow draft boat, runs shallow, carries a little speed, and is dry (I would recomend the raised console).
I'll be in POC the 19th through ??? If you'd like to come down for a test run, or want more info PM me and i'll give you my phone #.
I really can't think of anything I don't like about it. Well, actually, I would've put the livewell in front of the console, but that's it.
as for the rig you are mentioning.......the 140 will push it, but might be a lil light.