I would get the mechanical pump, it wont make that big of a difference temp wise. that eletric pump is going to draw alot of amps too. I you do use the eletric pump I would definatley get a regulator.
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73 coupe, 351W, GT-40 heads, edlebrock 750, offenhauser intake, .488 lift cam, 2.5 exhaust, 2 chamber flowmasters, blah, blah, blah...
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