The cast iron cross over on 1972 intakes is suppose to be incased in a metal heat shield and then rivited to the aluminum intake so its not removable.
I don't think the 1972 heatshield or cross over is being reproduced. The 1971 version is. It should work, but won't be 100% correct.
The 1972 choke spring and housing is different. The 1972 was made to sit on a flat machined pad on the cross over instead of the "well" that 1971 used. The 1972 version was suppose to pull the choke off faster for less emissions.
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1971 Trans Am 455 H.O. - Cameo white
1982 Recaro T/A 305 - Black
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