1968 shelby dist vac advance.

[shlb69]

What is the correct part number for a 68 gt350 4 spd vac advance for the distributor. ALso what is the DD part #

[TLea]

C8AZ 12370 A
sorry don't know DD#

[shlb69]

Thanks tim is there any markings on it like x 12, z or a12?

[Dizzy]

Should be A12,narrow silver band. The X12 and Z12 are the dual point type with wider,gold band.

[68blk500c]

May be mute by now, but trying to look up DD# for you; what is the dist. ID #?

[Coralsnake]

 The distributor is marked C8ZF-12127-A. It will have a dual style vacuum advance

[shlb69]

does this look right

[shlb69]

and this

[Chris Thauberger]

 Is that a service part?

I thought the front vacuum nipple threaded into the housing?

[68blk500c]

Per MPC, the C8ZF-A should use a DD#307 diaphragm unit.  CORRECTED POST