distributor vacuum advance part nbr
#1
I would like to find the part number for the dual port distributor vacuum advance canister for my 71 Mach1, 351c 4V. I want to buy an NOS part as opposed to the generic repro part that is typically sold.

I know the base number is 12370 but dont know which letters are on the front i.e. D1FZ,C8AZ. I thought they were pretty much interchangeable between years and were the same as long as they had 2 ports.

However, in reading, it sounded like the more performance cars received a different calibration of vacuum advance. Is this true?

Hoping that someone knows the answer or can check an original part to verify the part number.

Thanks!
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#2
I don't know what part number you need.  Maybe try Perogie Enterprises n New Jersey.  They specialize in Ford cars of this era and might at least have a good used original part.  Their website doesn't list the entire inventory.  You need to call them.

Original is great, but if it were mine, I'd consider a single diaphragm vacuum advance for it.  Crane offers several.  I might be wrong, but if I recall, one port on the dual diaphragm vacuum advance is to retard ignition timing at idle.  Just my 2 cents.  Somebody else here will probably know more about them.
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#3
Do you have your distributor stamping number? If you could give me that, I
can check my Ford catalog. Drink_to_that
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#4
   
I need last 2 letters also on that stamping please to get proper parts list.
Thanks,
Joel
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