Ive encolsed a picture of this hose hooked to my pump. Is this where i can hook a water hose to my boat and tune it out of the water? Will this deprive my jet of water? There are a couple ball valves on the water lines too, one on each side of motor. They are in the open position. My boat coughs a little if i nail it. Could be timeing, and id like to check things out at my shop. Get it dialed in before i put it in the water again. Another thing is will a mechanical pump keep up with these dual 4barrel carbs? (Im dubtful) It looks to be a large one and real new, but im not sure its keeping up. Kinda serges the power at high rpms running. I know the timeing/distrib needs to be check out first. And then deal with dialing in fuel/carb issues. How can i do this on land in the comfort of my shop?