The logo of Duperite on the back of the key tags may be the key to which company used these.  Duperite was actually a company with a subsidiary called Moulded Plastics.  Duperite was the former name of a  well known Australian brand NYLEX.

Hope this helps, please see link below

Cheers Wayne

http://ianwongresearch.blogspot.com.au/2011/11/duperite-dads-day-1956.html

Wow Nes

Your daughter is a quick learner and very competent, nice welds.

Cheers
Wayne

Pete

Thanks for the pics as I am close to having to refabricate these and the pics are a great help in determining profiles etc.

Cheers
Wayne

Keith

If you can't get a yoke, your local spare parts shop will have a multi-fit plastic dummy gearbox extension housing plug.  If you do use a real yoke it may pay to wire it in place as the weight of them will cause it to slip off if the box is lifted too far off the horizontal.

Cheers
Wayne

In the video to Surfers Paradise at the end of the punt crossing of the Clarence River you can see the old pub to the left which is still a big landmark in Grafton.  Cool vid 

Graham

My calcs say it would be a bit better than 28 mpg, so not too shabby.

Cheers
Wayne

Ken

The engine pipe may have an incorrect bend, do you have another to check against.

Cheers, Wayne

Maybe the front seat cutout is to accommodate the rear passenger 

PM sent

Kathy

This year is Canberra's centenary and there are a host of events happening throughout the year, if you like I can send you a PM with the event organiser details and you may want to see if there is any assistance etc that may be available.

Regards
Wayne

There is 4.546 litres to a gallon, which means you should divide by 7.7 for 35 litres used 

Spotted on EBay

http://www.ebay.com.au/itm/Holden-Fx-Fj-Fe-Fc-Fb-Ek-Ej-Governor-Grey-Motor-/251184061019?pt=AU_Car_Parts_Accessories&hash=item3a7bbc9a5b

FC Wags

You may need to add a couple of flat and one spring washer before putting the nuts on as some replacement studs have a shank section with no thread and the nut will bottom out before obtaining a seal.  As Ken said it is essential to have it square, tightening the nuts in an even manner, ie. alternate between the two nuts until all is tight.  A smear of manifold sealer is also helpful and if you can use brass nuts as this will make future repairs easier.

Regards, Wayne

Dean
Of course it counts as a drag car as everyone knows a UTE is really a BOY car 

Must of been an export LHD model  ..................... but it certainly is a great treasure to have an original drawing done by your Dad before you were born and it being of an FC is very uncanny.

You may want to check the coil as the old oil cooled versions when wearing out work OK until they get hot.

Cheers Wayne

Hey, your engine mount seems a bit soft 

Great rebuild, love the storyline.

Cheers Wayne

Wow that is really cool, where is it located??

I agree with Ken, it appears from your description that you have an air leak and the fuel pump will suck air rather than fuel as it is less dense than petrol.   If the rubber hose connection doesn't solve your problem carefully inspect the steel fuel line to ensure there are no pinprick ho;es.

Cheers Wayne

If the engine is in standard form it will be have a relatively low compression ratio when compared to later model engines and the lower octane fuel should be satisfactory, however with the absence of lead to aid in lubrication you will need to use an additive to help prevent any undue vale seat or guide wear.

Cheers Wayne