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in my opinion the best heads you can go with are the 3V set on www.pim.net. rather pricey, but ya get what you pay for. and they are aluminum. second choice would be a set of aussie heads all done up, but once agin that can get pricey. last but not least a ported set of stock 400 heads would work just fine, depending on what you want to do with the motor.
on the edelbroc thing, they claim there isn't enough interest to warrant them making a set. if ya want email them and tell them different. the guys over on www.bigbronco.com have a power drive going on right now so you might find some help there.
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.