G'day Fellas,

Background:-

253 just fitted into a HQ Prem, has B cast Brock heads,Quadrajet, 30/70 cam,'stractors, Chev HEI regraphed dizzy, goes well etc etc ( well, goes well for a 253 that is !! )...............

3 bits of info needed,

1. Can someone please ID the Quadrajet, number on passenger side is 17094595 1594 JHT.

2. Can someone ID the inlet manifold please GM 88-2 9947175.

3. Want to re-connect the auto choke to see if I can get it working again,engine is a dog to warm up without a choke, have bits and pieces of the heat riser pipes that go into the exhaust crossover in the manifold .........

Pretty sure the forward-most pipe screws to the auto choke boss on the carb but no idea where the rear-most pipe goes as I haven't got a parts manual/shop manual to show it and an internet search for pics resulted in a couple of hours of nothing........

I'm assuming the rear pipe might fit via a rubber hose to either a top port at rear of carb or somewhere on the air cleaner.

Can anyone explain the the heat riser pipe flow schematic for the auto choke and/or show me a pic of it on an original engine setup for this or a photo of the GM parts book/shop manual please?

I'm assuming that the Quadrajet is a Blue Motor one along with the inlet manifold ?............ guessing around WB or VB/VC/VH Commodore ??

Any help appreciated.