I would think it would be very solid in the 140's. I had a 4400 with 1075's that ran in the 130's no problem but needed prop work (140 was there all day long). Go and drive it!
Interested in your thoughts on this boat? seems like a ton of boat for 500k, will it perform with 1350s?
There are 4 nice 50-52 Nortech Supercats on the market right now in addition to the 43 Danger Zone.......all at a fraction of their build prices. I suspect they all are nice boats but a hassle to transport/use due to their gargantuan sizes! They will require bill wallets to operate/maintain also, 2 of the 50's are quad engine boats (4 #6 drives, 4 supercharged engines.....whew that just sounds expensive to type! ).