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Spark Plug type for modified engine
I recently rebuilt my engine on my Euro 79 911SC. I used pistons and cylinders from an 82 or 83 sc with a CR of 9.3:1 in lieu of the stock 8.5:1. Also, I had my camshafts reground to that of a 911 Carrerra C2/C4 3.6L, Grind # 40. Anyone care to offer an opinion as to what type of Bosch Spark Plug I should be using?
the stock specification for that year porsche was a Bosch W5D for a Euro car.
Appreciate any assistance you may offer.
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Erk 
PCA Member
restored 79 911SC Euro
green, mean and ready to rock
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