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			Optimum heat transfer is from bare metal to the air, but you willwant to balance that with corrosion and asthetics. I would think your rad shop should be good for advice.
		 
				__________________ Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions.... | 
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