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Re: Hot or Cold Spark Plugs? What to get??
As a rule, the coldest plug you can run(without fouling), will give the best power. If you run a lot of stop/go traffic in town, you might go for an extended tip plug(assuming you dont have plug/piston clearance issues). The extended tip will run hotter around town, & when you get out on the open road, it will run like a colder plug. if you have an eng that uses a little oil, a slightly hotter plug will burn cleaner. Thats all pretty general, but as a rule, I would start out with a factory type plug in a stock or mild build, & play from there. Best of luck....  L
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
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