Ben: Yes to most of your questions. I will be at the Tomahawk Nationals, so look ,me up & I can answer all your questions. As well I will be running my racing Wizard, it is the last model Mercury built, a 1956 Wm7-A Super 10, they ran the Mercury MK-25 powerhead (big crank). Yes, direct drive is how they ran them in the early 50's, point the boat toward open water & go. Start the motor & pull the spark back & they idle very well.
Thanks. We'll be there on Saturday of the event and we'll look you up. I'd love to see your race boat. You don't have to officially be a member to attend, do you?