Timing marks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jake1074 · 03-23-2019, 03:46 PM

Not exactly sure what I am looking at, but I got a photo while using the timing light. The balancer has a MSD tape on it and the timing tab has this red indicator arrow. (not my additions)

So as I look at the timing appears now to be set at 25-28 degrees after with vacuum line plugged. Prior the vacuum advance was hitting the intake and I could get little or no advance. I moved it a tooth and was able to get advance. At 12 degrees it's very hard to start and backfires, easy where it is now. However hard to start when hot.

SBC 350, mild cam, Edelbrock 1406 electric that is working.

Thoughts?

03-23-2019, 03:46 PM	#1
Jake1074 Registered User Join Date: Jan 2018 Location: Saluda, NC Posts: 87	Timing marks Not exactly sure what I am looking at, but I got a photo while using the timing light. The balancer has a MSD tape on it and the timing tab has this red indicator arrow. (not my additions) So as I look at the timing appears now to be set at 25-28 degrees after with vacuum line plugged. Prior the vacuum advance was hitting the intake and I could get little or no advance. I moved it a tooth and was able to get advance. At 12 degrees it's very hard to start and backfires, easy where it is now. However hard to start when hot. SBC 350, mild cam, Edelbrock 1406 electric that is working. Thoughts? Attached Images

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