What's missing is the Black Plastic insert that fits inside the center hole....it ID's the valve pressure setting.  BTW....mine is missing also.....if you find a source let us all know.

68Zproject... Here it is. But I can't find my pitch reader tools. I bet someone on here or TC will have one for you. Or at least tell ya the size...Hope this helps.. Danny

10-24 x 1/4".....read that somewhere, can't remember where.

Hey Chick....you are sure right about wacky.   When I click on the link it goes to post #841 at the top.  That was why I was saying I had to go backward to get to the right post number.

Crazzzzzy!!!!!

Hey Chick....I noticed that location on Danny's pictures and immediately thought of you.....just forgot to tell you about it.

BTW....the link you posted is not the correct one, it should be the two prior pages that are displaying the alternator mounting problems.  Just a thought....did you measure to see if the alternator might be positioned too far forward.  I think that when I had headers on my car, the adapter positioned mine forward. 

Just a thought.

Also, does anyone know what size the bolt is that holds the auto choke assembly to the manifold on the 68 Z?  I lost mine in the shuffle and the AIM just says production bolt.  Thanks.

Harv....this link is for an eBay ad for the screw but it shows a good picture.   Maybe you can find one locally that will look the same.

     http://www.ebay.com/dsc/6000/i.html?LH_TitleDesc=1&_nkw=159853+GM&_rdc=1

Looks like the size may be 10-24 X 1/4"

"BJ" is the identification code of the pulley that was used on the assembly line.  You showed an earlier picture of the real drums that had a "BU" sticker and the front springs had an "EE" sticker.  Same thing.

Here is a photo from the Lucas Restorations web site showing what appears to be an original 68 Z28 engine exhaust manifold and the center section does indeed have the washers behind the bolts.  I see you have the same question over on TC so I will also post this same info there for them to see.

    

Got it.....thanks a million for your help.

Thanks Danny....excellent photos of the valve.  One more check...does the valve have a number code, maybe like a date code, on it.  I have a couple of later ones that have a two digit code on them.

Again....Thanks

Hi Harv.....have you checked out the thread by Danny on the original 68Z that he has bought?   What a good series of photos.....check out Post #46 (http://www.camaros.org/forum/index.php?topic=12453.45.  I think that will show what you are looking for.

As to the screw...you might ask him to check what his looks like.

Danny....would it be possible to show a couple of photos of the PCV valve....curious to see, if it is the original, what it looks like.  Thanks in advance.

Might be interesting to see a complete spring tag.  I think there was a post recently about finding the right spring tag so that a correct repro could be made (might have been on TC site).  Man you have some good original stuff on this car....could be very interesting for an example of the correct restoration.

BTW....that WT stamped master cylinder is the correct one for the 68 Z28.

Danny...as to the number on the firewall...yes it is a run number.  On my '68, I have the number 22 on the firewall, inside front valence, and on the backside of the spare wheel.  I've seen several early cars that have a ballast resistor....usually added because of a faulty resistor wire.  Might check the wiring from the resistor and see if it goes to the coil.  If it has a standard '68 radio then it should be 12v powered so it wouldn't need a resistor.

Water pump?  Were you recently hunting for a 326 water pump?  Thought I responded to a post on here about someone wanting a 326 pump and we discussed dates.

Danny....one of the shifter rods has a loose lock nut .  Did you do that?  Also...you showed a ballast resistor...there was no ballast resistor in the '68.  It was a ballast resistor wire.  Thanks for the photos...will keep comparing to my 07C.  Already have noticed something interesting....my engine block and heads have casting dates almost identical to yours but my engine assembly date is 06-19.  Guess they had a stockpile of those dates and were still using them even in June.

Kurt...well said and I agree 100% with your actions.

BTW....welcome home.  Hope your year away was eventful and enjoyable.