Atlanta Marine, but I know they are looking at months out too now for new boats. Both Surpras and Moombas. Vinny is who I dealt with. I know he has driven pretty far to deliver some boats too.
We literally got the last one he had in stock. I have not been in one with a 450, but that 400 pulls really well with the gear/prop setup. I am not at any sort of a high altitude either. We generally have at least 10 kids and adults in the boat too. Mostly my teenage daughters friends.