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Message: <blockquote data-quote="Hemikiller" data-source="post: 373521" data-attributes="member: 25">IIRC, the 73 ram air air cleaner was a different stamping to accommodate the extra height of the EGR, and the repops are built like the 71-72 unit. If you get a 70-71 M-code cast iron square bore intake, you will need a different carb, as the Motorcraft 4300D used on the 71-74 Q-code was a unique spread-bore type pattern. If the car runs fine as-is, my choice would be a 71-72 Q-code intake, which doesn't have the EGR passage and retain the existing carb. This would eliminate any modifications you would need to make to vacuum systems etc. Another option would be the aluminum 71 Boss 351 intake casting # D1ZX-CA. If you don't want the carb heat passage, it's fairly simple to tap the drilled passage for a plug. If you do want to go with the early square bore intake, there's really no carb out there that's going to look OEM. The most "OEM-ish" thing you could do would be use a Holley dual feed carb and install the dual feed front bowl, crossover and filter to make it look like a Boss 302 carb. You'll have to make some adjustments to your vacuum lines and PCV setup. <img src="https://isteam.wsimg.com/ip/d641ce44-8d55-11e4-80dc-14feb5d9f2e6/ols/716_original/:/rs=w:600,h:600" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>