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Old 11-11-2003, 08:51 PM
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Timing degrees for sbc

What degrees should i set my timing for 87 octain winter driving and 91 octain for summer driving. The motor is a 350 sbc with a Q-jet in a 77monte carlo all original parts and one the car it says 10 degrees but i want your guys input on it thanks

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Old 11-11-2003, 09:19 PM
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10 sounds about right, try it and if it clatters back it off a bit. I would think with 91 octane you could bump it up to 12 mayby.

Vince
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Old 11-11-2003, 09:20 PM
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Idea timing is very subjective depending on your specific combination. The amount you want is different in everything case. Generally speaking you want the most timing possible with out getting into detonation territory for maximum fuel economy and power. Most small blocks like 32-36 degrees but this is just a ball park figure of course.
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Old 11-12-2003, 07:49 AM
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10 degrees should be good if its stock but like Robin said, all engines are different and require different timing. Depending on where you live in Canada I would stick with 87 octane fuel. Remember that winter fuel is formulated differently than summer fuel. It is designed to light off and burn quicker for easier cold starts so you don't want to use too much timing in the winter or you could get into a detonation problem.
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