CARB & EGR VALVE.

[383DART]

HELLO, I AM TRYING TO FIND OUT IF A 1972 CHALLENGER WITH A 318 OR 340 HAS A EGR VALVE & DID THEY USE A CARTER AVS THAT YEAR.IF NOT A AVS WHAT CARB DID THE FACTORY USE. ALSO THIS CAR IS A 3 SPEED MANUAL. DID THESE CARS HAVE A REVERSE LIGHT UNDER THE DASH LIKE THE 1970 DARTS HAD.  THANK'S.

[Chryco Psycho]

Welcome
no they did not have EGR
Yes they have the reverse light on the dash
I am not positive which carb they had , the 318 had the Carter 2 bbl , the 340 was either the AVS or the Thermoquad , I think 73 was the first year for the TQ

[Changin Gears]

'71 was the 1st year for the TQ on the 340.

[rallyechall]

Some great information from Demon Sizzler's ThermoQuad Connection website...

http://thermoquads.com/page203.html

The 72'-74' oem models

The carb was reengineered for 1972 and became a solid metered carb and thus was a much improved carb in both performance and tuneability. This was the first year the carb was used on a big block as an oem unit, a Mopar 400 cu in hp engine. Two different but similar top plates were used on the 72' 340 engines and can be id'd by the # 2007 and 2083 cast into the top plate. All big block carbs were the same casting but were slightly different from the 340 carb and were 850 cfm's while all 340 carbs were 800 cfm's. In 1973, only one carb top was used for for small and big blocks while the mid section and base plates were again 800 and 850 cfm specific parts.This was the first year used on a Mopar 440 engine and the first and only year used on a US manufactured Ford, the 460 cu in engine. It was also the first year used on an International Harvestor engine, the 345 and 392 cu in.  In 1974, the top was again slightly revised having an extended accelerator pump arm boss and different pump arm linkage that both remained through 1984. All 1972-1974 carbs were known as the 6000 series carbs. The 74' Ford carb was an 800 cfm with an integral 12 volt choke and special accomodating base plate for the choke. The I.H. carb was an 850 cfm.