Just got back from Havasu testing my new Howard 28 Bullet with a Pfaff injected quad rotor with Imcos new 4x4 SC extreme drive. The Pfaff engine idles at 700 rpm and pulls like mad with only 6 lbs of boost. The new Imco 4x4 shifts smooth as silk. Any one considing a new set up or repower needs to take a look at this setup. A special thanks to Paul and Gordon at Pfaff racing, everyone at Imco and of course the team at Howard Custom Boats for a job well done.