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Hello Bill. My name is Tan.
You have the correct firing order. To be sure of the #1 spark plug position the best way to find # 1 is to remove the # 1 spark plug and crank engine over till it blows your finger off the plug hole. Then look at the timing pointer on the front of engine harmonic balancer. They should be lined up at close to TDC. Then remove the distributor cap and the rotor should be pointing at # 1. Then if it is correct then follow the firing order 1-3-7-2-6-5-4-8 in a counter clock wise direction.
Do you follow the procedure?