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    Hilborn 8 Stack Manifolds – Cooling System

    Cooling system is connected by using two of the 4 available #8 ports on the manifold as a filler- look at for a couple of different filler devices. If you have a normal radiator with a cap, you can shove the coolant through these two front fittings, and T them back into the upper radiator neck. The #8 fittings slow down the flow, so you shouldn’t need a thermostat.
    Methanol – you won’t need to circulate water at all.
    E-85 will run cooler than gas by approx 15 degrees.