specifically you can plump the water from your thermostat which will run out to the heat plate and back into you heater hose that runs back into
your water pump.
The challenging part is to find the right T fittings and adapters for all hoses. Motormite sells quie a fet T fittings for heater hoses.
Also make sure to keep the hoses clear of your exhaust manifold.
I just did this on my 235 and it definitely heats the intake...I think a little too much, but haven't given it much of a road test yet though.
