thedukeryan

I currently have a 29' Envision combo that I purchased with everything but the block. I dropped in a 454bbc with 781 cast heads, comp cam, edelbrock rpm intake and IMCO Powerflow exhaust. I have had the boat out once for trial run and could not get it past ~ 4500 rpms at WOT. I am shooting for around 5500. My first thought was to go from a 23p prop to a 19p prop but now my concern is that the lack of rpms may not only be the prop but possibly a rev limiter as well. I was told that if I have a knock sensor (which I do) then I have a 4800rpm rev limiter. Can anyone advise?

Young Performance

You would know if it was sitting on the rev limiter. What ignition are you running? What induction system? carb or efi? Give us a little more info on the engine.
Eddie