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**truckster** · 11-22-2011, 05:03 PM

I agree that your timing is way off. It should be between 8-12 degrees BTDC with the vacuum advance plugged. Check your firing order too. If you have a stock manifold it's cast into the manifold.

11-22-2011, 05:03 PM	#6
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,805	Re: Truck won't start right up and backfires like crazy! I agree that your timing is way off. It should be between 8-12 degrees BTDC with the vacuum advance plugged. Check your firing order too. If you have a stock manifold it's cast into the manifold.