Quote:
Originally Posted by Dlirium
Here is an interesting theory, but potentially irrelevant :-)
Gap makes a HUGE difference in older cars. I have a 351 Cleveland in a 1972 Pantera. Changing the gap from the traditional 35 thousands to 45 thousands yielded a LOT more power. Mostly due to the modern MSD ignition that can handle the larger gap, but just that would easily account for the equivalent of an "S" vs a base in power...
I know the plugs come "pre gaped", but may be worth comparing the NGK's to the new Bosch?
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Wider gap allows better combustion, IF the coil etc provides enough energy to bridge the gap.
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OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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