Get that bad boy back in the water yet??

Not yet, I just got the EMI manifolds/risers today so the headers are coming out soon. I decided against the Glenwood logs since they had no idea when the straight risers would be available and I wanted the center riser manifold so there's less chance of water coming back through the exhaust. I put some new Taylor 9mm wires on it and you could feel and hear the difference. I have a smaller nozzle on the way which should increase the thrust and turning.

Got the EMI Thunder manifolds installed, put on a smaller nozzle on the jet which helps steering and thrust and put on a new Holley 600 carb. It's a lot quieter with the water cooled manifolds and cooler with no hot air cycling back through the boat. I ran it Wed with manifolds and it was a big difference. But today I put the new carb on and holy crap! :shock: I picked up 1000 rpm's and it flat out flies. I need to get a working oil temp gauge installed before I push it too much but it felt like it was doing 70-80 mph which is a little crazy in a 13' boat. I had to put some 4" to 3.5" reducer pipes in since the thru transom outlets were 3.5 and I didn't want to cut anything bigger into the transom.

http://www.njfboa.org/forums/attachm...1&d=1502502708

http://www.njfboa.org/forums/attachm...1&d=1502502708

http://www.njfboa.org/forums/attachm...1&d=1502502708

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Does the split from the water outlet go into the bottom of the manifolds?

Yes, that's the way I have it set up right now. I wanted to go into the manifolds first, the come out and go into the engine, then out the thermostat and back into the risers. That would allow it to warm the water first before going into the engine and keep the risers isolated from the manifolds to reduce a chance of leaking back into the exhaust. But I can't get the manifold fittings loose and they are 1" hose fittings and the rest of my setup is 5/8 and was already in place. So I have some adapters to take the hose from 5/8 to 1" just before going into the manifolds. It all seems to be working fine, but the engine never gets up 150 degrees so I would imagine in cooler water it would be even less.