Quote:
Originally Posted by MARTINSR
...The only test I know was the Mobil "Economy run" in 1959 where they got something like 26 mpg average with the car on a 1400 mile trip. Pretty impressive but with removing some of the obvious mph robbers like the four blade steel fan and the worse exhaust manifold known to man, I would think I can make some big jumps in the efficiency...
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How about those square'd holes (I forgot what they are called, near the headers/cylinders?