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Thanks Much....
I guess that Chiltons can make mistakes too, as they have that order for a 390.

Don,
yeah I posted that thread last night.... got a response but still unsure of that fireing order.

I have a fastback 68' Galaxie XL. I'm trying to figure out what the engine is.
The number between the spark plugs is: C8AE-H. Block casting date is June 18th, 1968(8F18) there is also a letter V...

back again with a question about my engine. I think its a 390 but, here is the fireing order that works: 1-5-4-2-6-3-7-8
In my chiltons book it says this fireing order is for a 351 & 400. the...