Gorexer on here has the same boat with a 572 ci quad rotor. I've ridden in the boat and it is a lot of fun.

What kind of speed and power is gorexer running . Drive and gears prop?

When I owned it I only had it to 105 or so but there was more left , , B1 drive 1.50 gears I dont remember what prop I was running , was a fun boat .

What kind of compression would this motor have 572 with 1471 blower

7.5 to 8 ish, just a guess but thats where it should be.