Can anyone help me with this manifold number - 3923416.

My original 6 cyl in my 69 conv. has an intake that looks like Pontiac Blue paint and has the firing order stamped on it. My parts engine has a different intake (No firing order and different part #)

Just want to clarify this is the correct intake.

It is also stamped:

GM 26
D 189

I know the D 189 decodes to April 18, 1969 which is close to the block and head (April 14 and April 18).

I also need any pics of original or restored original 6 cylinders to help me restore the look.