Well, there is only one mark on the balancer. So I have no choice but to trust that its correct. As for procedure, I unplugged the timing wire and set to 0º TDC. Am I missing something?

So I cleared the EGR valve and still have issues. I've searched long and hard for a vacuum leak and have not found one. How common is it for the intake to leak or crack on the underside?

Mine has the sm465. BCC is AKWH

It's the single wire timing connector. Sorry, I've heard it refered to as a spout. I don't know what BCC is. So does the 1228747 support knock and ESC? Dealer also lists this as stock to the VIN.
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I purchased a non running 1990. Rebuilt the motor and cant get it to run right. I've found evidence that the computer has been changed or tampered with. It's a 1228747. I've been reading that this...