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I have a set laying on top of my 460. I got mine from Pick A Part. They list their inventory online. $34 each. Mine came off a '69 Mercury Marquis 429 rated at 390 hp. Just search their inventory from time to time and a set will pop up. Anything '68-'70 will work just fine. I have read '72 heads can be worked to perform well. I also grabbed the intake ($27). Don't know if there is any difference other than my '76 intake was a spread bore & the C8 intake is square bore. I am getting ready to pull it off & put an Edelbrock Performer (idle-5500) on.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.