manifold guage on 5.7 volvo

[cdavisdb]

The one thing that is a potential disadvantage of the duoprop, which might be important to some, is the instant acceleration; the thing doesn't slip at all. Hole shot is very fast. Put it in gear and don't give it any gas until it starts moving. If you do goose it even a little and are not holding on, it will jump so quick that you will end up sitting on your rear end in the back of the boat. Conversely, if your carburetor is a little large, or the engine doesn't like a bunch of gas before its rpms can catch up, it may stall.