Here is the deal. My BIL is deciding on boats to buy. He is leaning STRONGLY to a Campion 600 CHASE BR OB
http://www.campionboats.com/chase/600/ob/specs.php
Think of it as a 21' Cobalt with an outboard. Its a 25" Transom boat. Campion has tested it with a 250HO and got a hair under 60 mph. My BIL is leaning hard toward the ETEC vs the SHO.

My question: In this application, would he be ANY better off going with the 300 over the 250HO? The only thing I told him was the 1.86 ratio magnum lower-unit is better for that boat than the 1.71 lightning of the 250HO. He is ALL about getting as much top speed as possible and doesn't mind sacrficing some hole-shot.

I know its not a basser,but lets hear it ETEC Experts

Thanks